Category: Computer

200 One-Liner Computer Network Quiz with Answers

Post author By admin
Post date June 11, 2025

Introduction

Welcome to our comprehensive collection of 200 one-liner computer network quiz questions with answers, designed to boost your general knowledge and aid in exam preparation. Whether you’re a student gearing up for competitive exams, a professional pursuing networking certifications, or simply curious about computer networks, this quiz is your ultimate resource. Covering key topics like network protocols, topologies, security, and more, these questions are sourced from credible educational platforms to ensure accuracy and relevance. Test your skills, learn new concepts, and ace your exams with this SEO-optimized computer network quiz with answers!

What is a computer network?
A collection of interconnected computers and devices that share resources.
What does LAN stand for?
Local Area Network.
What is the Internet?
An interconnection of wide area networks (WANs).
Which protocol suite is fundamental to Internet communication?
TCP/IP.
What is the OSI model?
A structured plan for how applications communicate over a network.
How many layers does the OSI model have?
Seven.
Which OSI layer handles data routing paths?
Network layer.
What is multiplexing in networking?
Combining multiple signals into one over a shared medium.
Which device forwards packets between networks using routing information?
Router.
What is a distributed system?
A collection of computers appearing as a single coherent system to users.
What is a Denial of Service (DoS) attack?
An attack that makes network resources unavailable to users.
Which layer in the OSI model performs error control?
Data Link layer.
What is a firewall?
A device that monitors and filters network traffic based on security policies.
What does WAN stand for?
Wide Area Network.
What is Bluetooth used for?
Short-range wireless data exchange in a Personal Area Network (PAN).
What is an overlay network?
A virtual network built on top of an existing network.
Which protocol is used for secure web browsing?
HTTPS.
What is a MAC address?
A unique identifier for a network interface card.
What is packet switching?
Dividing messages into packets for transmission.
Which device amplifies network signals?
Repeater.
What is a hub in networking?
A device that connects multiple devices in a network.
What does .edu represent in a domain name?
Educational institutions.
What is a client in a network?
A computer accessing services from a server.
What is a two-letter domain like .us or .uk called?
Country domain.
What is simplex communication?
Unidirectional data transmission.
What is half-duplex communication?
Bidirectional data transmission, one direction at a time.
What is full-duplex communication?
Simultaneous bidirectional data transmission.
Which topology uses a central connecting point?
Star topology.
What is a node in a network?
A device that sends or receives data, like a computer or printer.
What is RS232C?
A standard interface for serial data transmission.
What is the base of the hexadecimal number system?
16.
What is an intranet?
A closed network accessible only to a specific group.
Who is considered the “father of the Internet”?
Vinton Gray Cerf.
What is a MAN?
Metropolitan Area Network.
What is ARPANET?
An early form of the Internet developed in the 1960s.
What is Usenet?
A worldwide Internet discussion system using newsgroups.
What is spam in networking?
Unsolicited commercial email sent in bulk.
What is a digital footprint?
A trail of data reflecting online activities.
What is a passive digital footprint?
Data collected without user knowledge, like website visit counts.
What is an active digital footprint?
Data intentionally left by users, like social media comments.
What is an ISP?
Internet Service Provider, connecting users to the Internet.
What is a Tier 1 ISP?
An ISP with global reach, interconnecting without paying for transit.
What is a modem?
A device that converts digital signals to analog and vice versa.
What is a video card?
A circuit generating video signals for a computer display.
How many pins does an RS-232 connector typically have?
25.
What is a file server?
A server allowing remote access to files over a network.
What is a hard disk drive?
A non-volatile magnetic storage device.
Which protocol is used for email transmission?
SMTP (Simple Mail Transfer Protocol).
What is FTP?
File Transfer Protocol for transferring files over a network.
What is a VPN?
Virtual Private Network for secure remote access.
What is a switch in networking?
A device that connects devices within a network using packet switching.
What is IPv4?
A 32-bit addressing scheme for Internet devices.
What is IPv6?
A 128-bit addressing scheme to replace IPv4.
What is a coaxial cable?
A cable using copper wires for data transmission with EMI protection.
What is a bus topology?
A network where all devices connect to a single cable.
What is a routing path?
The path data takes through a network to reach its destination.
What is VoIP?
Voice over Internet Protocol for voice communication over networks.
What is a spreadsheet?
Software for storing and analyzing data in rows and columns.
What is a white hat hacker?
A cybersecurity expert who identifies vulnerabilities ethically.
What is Python?
A high-level, interpretable programming language.
What is a protocol?
A set of rules governing data communication.
What is a bridge in networking?
A device connecting two network segments at the data link layer.
What is a gateway?
A device connecting networks with different protocols.
What is a frame in networking?
A data unit at the data link layer.
What is error detection in networking?
Techniques to identify errors in data transmission.
What is a physical layer?
The OSI layer handling hardware-specific operations.
What is the application layer?
The OSI layer interacting with user applications.
What is a transport layer?
The OSI layer ensuring reliable data transfer.
What is frame relay?
A packet-switching protocol for WANs.
What is a networking protocol?
A standard for data exchange between devices.
What is a browser’s role in networking?
It operates at the application layer for web access.
What is a logical topology?
The way data flows in a network, regardless of physical layout.
What is a twisted pair Ethernet’s logical topology?
Bus topology.
What is a registered trademark in networking?
A symbol protecting brands or logos.
What is a social media platform example?
Instagram, owned by Facebook.
What is a PAN?
Personal Area Network for short-range device communication.
What is a peer-to-peer network?
A network where devices act as both clients and servers.
What is the maximum range of Bluetooth?
10 meters.
What is a network interface card (NIC)?
A hardware component for network connectivity.
What is a simplex mode example?
A television broadcast.
What is a half-duplex mode example?
A walkie-talkie.
What is a full-duplex mode example?
A telephone call.
What is a star topology’s central device?
A switch or hub.
What is a ring topology?
A network where each device connects to the next in a loop.
What is a mesh topology?
A network where devices are interconnected directly.
What is a hybrid topology?
A combination of two or more topologies.
What is a subnet?
A smaller network within a larger network.
What is subnetting?
Dividing a network into smaller subnetworks.
What is a default gateway?
A router that connects a local network to external networks.
What is DHCP?
Dynamic Host Configuration Protocol for automatic IP assignment.
What is DNS?
Domain Name System for translating domain names to IP addresses.
What is a domain name?
A human-readable address for a website.
What is a packet?
A small unit of data transmitted over a network.
What is latency?
The time delay in data transmission over a network.
What is bandwidth?
The maximum data transfer rate of a network.
What is throughput?
The actual data transfer rate achieved in a network.
What is a collision in networking?
When two devices transmit data simultaneously on a shared medium.
What is CSMA/CD?
Carrier Sense Multiple Access with Collision Detection.
What is a broadcast?
Sending data to all devices in a network.
What is a unicast?
Sending data to a single device in a network.
What is a multicast?
Sending data to a group of devices in a network.
What is a proxy server?
A server acting as an intermediary between clients and servers.
What is NAT?
Network Address Translation for mapping private to public IPs.
What is a public IP address?
An IP address accessible over the Internet.
What is a private IP address?
An IP address used within a local network.
What is a static IP address?
A fixed IP address assigned to a device.
What is a dynamic IP address?
An IP address assigned temporarily by DHCP.
What is a loopback address?
127.0.0.1, used to test network connectivity on a device.
What is a port in networking?
A logical endpoint for communication in a device.
What is port 80 used for?
HTTP traffic.
What is port 443 used for?
HTTPS traffic.
What is a socket in networking?
A combination of an IP address and port number.
What is a handshake in networking?
A process to establish a connection, like TCP’s three-way handshake.
What is a three-way handshake?
SYN, SYN-ACK, ACK process in TCP connection setup.
What is a segment in networking?
A data unit at the transport layer.
What is a datagram?
A data unit at the network layer, used in UDP.
What is UDP?
User Datagram Protocol, a connectionless transport protocol.
What is TCP?
Transmission Control Protocol, a reliable transport protocol.
What is the difference between TCP and UDP?
TCP is reliable and connection-oriented; UDP is faster but unreliable.
What is a checksum?
A value used to verify data integrity during transmission.
What is a CRC?
Cyclic Redundancy Check for error detection.
What is a collision domain?
A network segment where collisions can occur.
What is a broadcast domain?
A network segment where broadcasts are sent.
What is VLAN?
Virtual Local Area Network for segmenting networks logically.
What is a trunk in networking?
A link carrying multiple VLANs between switches.
What is QoS?
Quality of Service for managing network traffic priority.
What is a firewall rule?
A policy defining allowed or blocked network traffic.
What is an ACL?
Access Control List for defining network access permissions.
What is a DMZ?
Demilitarized Zone, a secure network segment for public-facing services.
What is IDS?
Intrusion Detection System for monitoring network threats.
What is IPS?
Intrusion Prevention System for blocking network threats.
What is a honeypot?
A decoy system to attract and analyze cyberattacks.
What is encryption in networking?
Converting data into a secure format to prevent unauthorized access.
What is a cipher?
An algorithm for encrypting or decrypting data.
What is SSL?
Secure Sockets Layer for secure data transmission.
What is TLS?
Transport Layer Security, the successor to SSL.
What is a digital certificate?
A file verifying the identity of a device or server.
What is a public key?
A key used for encryption in asymmetric cryptography.
What is a private key?
A key used for decryption in asymmetric cryptography.
What is a symmetric key?
A single key used for both encryption and decryption.
What is a hash function?
A function converting data into a fixed-size value for integrity checks.
What is a phishing attack?
A fraudulent attempt to obtain sensitive data via email or websites.
What is malware?
Malicious software designed to harm networks or devices.
What is a worm?
A self-replicating malware spreading across networks.
What is a virus?
Malware requiring user action to spread.
What is a Trojan?
Malware disguised as legitimate software.
What is ransomware?
Malware locking data until a ransom is paid.
What is a botnet?
A network of compromised devices controlled by an attacker.
What is a DDoS attack?
Distributed Denial of Service attack overwhelming a network.
What is a man-in-the-middle attack?
An attack intercepting communication between two parties.
What is a packet sniffer?
A tool capturing and analyzing network packets.
What is a wireless network?
A network using radio waves for connectivity.
What is WEP?
Wired Equivalent Privacy, an outdated wireless security protocol.
What is WPA?
Wi-Fi Protected Access, a wireless security protocol.
What is WPA2?
An improved version of WPA with stronger encryption.
What is a rogue access point?
An unauthorized Wi-Fi access point in a network.
What is a MAC filter?
A security measure allowing only specific MAC addresses to connect.
What is a signal amplifier?
A device boosting wireless network signals.
What is a hotspot?
A location providing Wi-Fi access to the Internet.
What is 802.11?
A set of IEEE standards for wireless LANs.
What is Wi-Fi 6?
The sixth generation of Wi-Fi based on 802.11ax.
What is a fiber optic cable?
A cable using light to transmit data at high speeds.
What is UTP cable?
Unshielded Twisted Pair cable for network connectivity.
What is STP cable?
Shielded Twisted Pair cable with EMI protection.
What is a crossover cable?
A cable connecting similar devices directly, like two computers.
What is a straight-through cable?
A cable connecting different devices, like a computer to a switch.
What is a patch cable?
A short cable connecting devices in a network rack.
What is a console cable?
A cable for configuring network devices like routers.
What is a rollover cable?
A cable with reversed pin assignments for device configuration.
What is a T1 line?
A digital transmission line with a capacity of 1.544 Mbps.
What is a DS3 line?
A digital transmission line with a capacity of 44.736 Mbps.
What is a leased line?
A dedicated communication line between two points.
What is MPLS?
Multiprotocol Label Switching for efficient data routing.
What is a circuit-switched network?
A network establishing a dedicated path for communication.
What is a packet-switched network?
A network transmitting data in packets without a dedicated path.
What is a virtual circuit?
A logical path for data in a packet-switched network.
What is ATM?
Asynchronous Transfer Mode for high-speed data transfer.
What is a cell in ATM?
A fixed-size packet of 53 bytes.
What is SONET?
Synchronous Optical Networking for high-speed data transmission.
What is a wavelength in networking?
A specific frequency of light used in fiber optics.
What is DWDM?
Dense Wavelength Division Multiplexing for multiple data streams.
What is a dark fiber?
Unused fiber optic cable available for lease.
What is a network backbone?
The main infrastructure connecting network segments.
What is a core router?
A high-capacity router at the network backbone.
What is an edge router?
A router connecting a local network to an external network.
What is a distribution switch?
A switch aggregating traffic from access switches.
What is an access switch?
A switch connecting end devices to the network.
What is PoE?
Power over Ethernet for powering devices via network cables.
What is a network appliance?
A specialized device for network functions, like a firewall.
What is SDN?
Software-Defined Networking for centralized network control.
What is NFV?
Network Functions Virtualization for virtualizing network services.
What is a load balancer?
A device distributing network traffic across servers.
What is failover?
Switching to a backup system during a failure.
What is redundancy in networking?
Duplicate systems to ensure reliability.
What is a network audit?
An assessment of network performance and security.
What is a traceroute?
A tool tracing the path of packets to a destination.
What is a ping?
A tool testing network reachability between devices.
What is NetBIOS?
Network Basic Input/Output System for LAN communication.
What is SNMP?
Simple Network Management Protocol for monitoring devices.
What is a network administrator’s role?
Managing and maintaining network infrastructure.

Conclusion

This computer network quiz with answers is your key to mastering networking concepts effortlessly. By practicing these 200 one-liner questions, you’ve strengthened your knowledge and boosted your confidence for exams and certifications. Keep exploring, revisit the quiz, and share it with peers to excel in the dynamic field of computer networks. Stay connected and prepared with our educational resources!

Disclaimer

The computer network quiz with answers provided is for educational purposes only. While sourced from credible platforms, the accuracy of information may vary. Use this quiz as a study aid and verify critical details with official resources before relying on them for exams or professional purposes.

Also Read: 200+ Basic Computer MCQs with Answers for GK and Exam Preparation

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Computer

200 One-Liner Computer C Language Quiz Questions with Answers

Post author By admin
Post date June 10, 2025

Introduction

The C programming language, developed by Dennis Ritchie in 1972, remains a cornerstone of computer science education and software development. Known for its efficiency and versatility, mastering C is crucial for students preparing for competitive exams, job interviews, or academic assessments. This article presents 200 one-liner computer C language quiz questions with answers, carefully curated from trusted sources to enhance your general knowledge and exam readiness. These concise questions cover fundamental to advanced C concepts, making them ideal for quick revision and effective learning. Dive into this C language quiz with answers to test your skills and boost your confidence!

Who developed the C programming language?
Dennis Ritchie.
In which year was C developed?
1972.
Where was C programming language developed?
Bell Laboratories.
What type of programming language is C?
General-purpose and procedural.
Which operating system was C primarily developed for?
UNIX.
What is the file extension for C source files?
.c
What is the file extension for C header files?
.h
Which keyword is used to define a constant in C?
const
Which symbol is used for the address-of operator in C?
&
Which symbol is used for the dereference operator in C?
What is the size of an int data type in a 32-bit system?
4 bytes
What is the size of a char data type in C?
1 byte
What is the size of a double data type in C?
8 bytes
Which keyword is used to exit a loop in C?
break
Which keyword is used to skip the current iteration of a loop?
continue
What does the printf() function do in C?
Prints formatted output to the console.
What does the scanf() function do in C?
Reads formatted input from the console.
Which header file is required for printf() and scanf()?
stdio.h
What is the purpose of the main() function in C?
It is the entry point of the program.
What is the return type of the main() function in C?
int
What does the return 0 statement in main() indicate?
Successful program execution
Which operator is used for logical AND in C?
&&
Which operator is used for logical OR in C?
||
Which operator is used for logical NOT in C?
!
What is the result of 5 % 2 in C?
1
Which keyword is used to define a function in C?
return_type (e.g., int, void)
What is a pointer in C?
A variable that stores a memory address.
How is a pointer declared in C?
Using the * symbol, e.g., int *ptr;
What does the & operator do when used with a variable?
Returns the address of the variable
What does the * operator do when used with a pointer?
Accesses the value at the pointer’s address
What is NULL in C?
A macro representing a null pointer constant
Which header file defines NULL?
stddef.h
What is an array in C?
A collection of elements of the same data type.
How is an array declared in C?
data_type array_name[size];
What is the index of the first element in a C array?
0
What is a string in C?
An array of characters terminated by a null character (\0).
Which function is used to find the length of a string in C?
strlen()
Which header file is required for string functions like strlen()?
string.h
What does the strcpy() function do in C?
Copies one string to another.
What does the strcmp() function do in C?
Compares two strings lexicographically.
What is the purpose of the getchar() function in C?
Reads a single character from stdin
What is the purpose of the putchar() function in C?
Writes a single character to stdout
Which loop in C is used when the number of iterations is known?
for loop
Which loop in C is used when the condition is checked at the end?
do-while loop
What is the syntax of a while loop in C?
while (condition) { statements; }
What is a function prototype in C?
A declaration of a function’s name, return type, and parameters
What is the purpose of the void keyword in a function?
Indicates no return value or no parameters
What is recursion in C?
A function calling itself.
What is a structure in C?
A user-defined data type that groups different data types.
How is a structure declared in C?
Using the struct keyword, e.g., struct name { members; };
What is a union in C?
A user-defined type where all members share the same memory location.
What is the size of a union in C?
Equal to the size of its largest member.
Which keyword is used to define a macro in C?
#define
What is the purpose of the #include directive in C?
Includes a header file in the program.
What does the #ifndef directive do in C?
Checks if a macro is not defined
What is the purpose of the typedef keyword in C?
Creates an alias for a data type.
What is the difference between ++i and i++ in C?
++i increments before use; i++ increments after use.
What is the ternary operator in C?
condition ? expr1 : expr2
What is the result of a logical expression in C?
0 (false) or 1 (true).
Which keyword is used to jump to a label in C?
goto
What is the purpose of the switch statement in C?
Executes one of many code blocks based on a value.
What is the default case in a switch statement?
Executes if no case matches the expression
What happens if a break is omitted in a switch case?
Fall-through occurs, executing subsequent cases.
What is the size of a void pointer in C?
Depends on the system architecture (e.g., 4 bytes on 32-bit)
What is a dangling pointer in C?
A pointer pointing to a deallocated memory location
What is a wild pointer in C?
An uninitialized pointer
Which function allocates memory dynamically in C?
malloc()
Which function allocates and initializes memory to zero in C?
calloc()
Which function resizes dynamically allocated memory in C?
realloc()
Which function frees dynamically allocated memory in C?
free()
What is a memory leak in C?
Failure to free dynamically allocated memory
What is the purpose of the sizeof operator in C?
Returns the size of a variable or type in bytes.
What is the range of a signed int in a 16-bit system?
-32768 to 32767
What is the format specifier for an int in printf()?
%d
What is the format specifier for a float in printf()?
%f
What is the format specifier for a character in printf()?
%c
What is the format specifier for a string in printf()?
%s
What is the format specifier for a pointer address in printf()?
%p
What does the %u format specifier represent in C?
Unsigned integer
What is a bitwise AND operator in C?
&
What is a bitwise OR operator in C?
|
What is a bitwise XOR operator in C?
^
What is a bitwise NOT operator in C?
~
What is the left shift operator in C?
<<
What is the right shift operator in C? The right shift operator in C is >>.
What does the expression x << 2 do in C?
Shifts x left by 2 bits (multiplies by 4)
What does the expression x >> 1 do in C?
Shifts x right by 1 bit (divides by 2)
What is a static variable in C?
A variable that retains its value between function calls
What is the scope of a static variable declared inside a function?
Local to the function
What is the lifetime of a static variable in C?
Entire program duration
What is an extern variable in C?
A variable declared in one file and defined in another
What is the purpose of the extern keyword?
Declares a variable or function defined elsewhere
What is a volatile keyword in C?
Indicates a variable can change unexpectedly
What is an enum in C?
A user-defined type for a set of named constants
How is an enum declared in C?
enum name { value1, value2, … };
What is the default value of the first enum member in C?
0
What is a file pointer in C?
A pointer to a FILE structure for file operations
Which function opens a file in C?
fopen()
Which function closes a file in C?
fclose()
What is the mode “r” in fopen() used for?
Opens a file for reading
What is the mode “w” in fopen() used for?
Opens a file for writing (creates or overwrites)
What is the mode “a” in fopen() used for?
Opens a file for appending
Which function reads a character from a file in C?
fgetc()
Which function writes a character to a file in C?
fputc()
Which function reads a string from a file in C?
fgets()
Which function writes a string to a file in C?
fputs()
What is the purpose of the feof() function in C?
Checks for end-of-file condition
What is the purpose of the fseek() function in C?
Moves the file pointer to a specific position
What is the purpose of the ftell() function in C?
Returns the current file pointer position
What is the purpose of the rewind() function in C?
Moves the file pointer to the beginning of the file
What is a command-line argument in C?
Arguments passed to the main() function
How is the main() function defined to accept command-line arguments?
int main(int argc, char *argv[])
What does argc represent in main()?
Number of command-line arguments
What does argv represent in main()?
Array of command-line argument strings
What is the first element of argv in C?
The program name
What is a preprocessor in C?
A tool that processes source code before compilation
What is the purpose of the #pragma directive in C?
Provides compiler-specific instructions
What does the #error directive do in C?
Generates a compilation error with a message
What does the #line directive do in C?
Changes the reported line number and file name
What is a macro in C?
A fragment of code replaced by the preprocessor
What is the difference between a macro and a function in C?
Macros are preprocessed; functions are compiled
What is a conditional compilation in C?
Including or excluding code based on conditions
What is the purpose of the #ifdef directive?
Checks if a macro is defined
What is the purpose of the #endif directive?
Ends a conditional compilation block
What is a typecasting in C?
Converting one data type to another
What is implicit typecasting in C?
Automatic conversion by the compiler
What is explicit typecasting in C?
Manual conversion using a cast operator
What is the syntax for explicit typecasting in C?
(type) expression
What is a segmentation fault in C?
An error caused by accessing invalid memory
What is a buffer overflow in C?
Writing data beyond a buffer’s allocated memory
What is the purpose of the assert() function in C?
Tests a condition and terminates if false
Which header file is required for assert()?
assert.h
What is the purpose of the exit() function in C?
Terminates the program
Which header file is required for exit()?
stdlib.h
What is the purpose of the atoi() function in C?
Converts a string to an integer
What is the purpose of the atof() function in C?
Converts a string to a float
Which header file is required for atoi() and atof()?
stdlib.h
What is the purpose of the rand() function in C?
Generates a pseudo-random number
Which header file is required for rand()?
stdlib.h
What is the purpose of the srand() function in C?
Seeds the random number generator
What is a bitwise operation in C?
Operations on individual bits of data
What is the result of 5 & 3 in C?
1 (binary: 0101 & 0011 = 0001)
What is the result of 5 | 3 in C?
7 (binary: 0101 | 0011 = 0111)
What is the result of 5 ^ 3 in C?
6 (binary: 0101 ^ 0011 = 0110)
What is the result of ~5 in C (assuming 32-bit int)?
-6 (binary: ~00000101 = 11111010)
What is a function pointer in C?
A pointer that points to a function
How is a function pointer declared in C?
return_type (*pointer_name)(parameter_types);
What is a call-by-value in C?
Passing a copy of a variable to a function
What is a call-by-reference in C?
Passing a pointer to a variable to a function
What is the purpose of the const keyword in a function parameter?
Prevents modification of the parameter
What is a storage class in C?
Defines the scope and lifetime of a variable
What are the four storage classes in C?
auto, register, static, extern
What is the default storage class for local variables in C?
auto
What is the purpose of the register storage class in C?
Suggests storing a variable in a CPU register
What is a global variable in C?
A variable declared outside all functions
What is the scope of a global variable in C?
Entire program
What is a local variable in C?
A variable declared inside a function or block
What is the scope of a local variable in C?
Limited to the function or block
What is the lifetime of a local variable in C?
Until the function or block ends
What is a variable initialization in C?
Assigning a value to a variable at declaration
What is the default value of an uninitialized global variable in C?
0
What is the default value of an uninitialized local variable in C?
Garbage value
What is a format string vulnerability in C?
Improper use of format specifiers in printf/scanf
What is the purpose of the getch() function in C?
Reads a character without echoing to the console
Which header file is required for getch()?
conio.h (non-standard)
What is the purpose of the clrscr() function in C?
Clears the console screen (non-standard)
What is a multidimensional array in C?
An array of arrays
How is a 2D array declared in C?
data_type array_name[rows][columns];
What is the purpose of the const pointer in C?
A pointer that cannot change the address it holds
What is the purpose of a pointer to const in C?
A pointer that cannot modify the data it points to
What is a far pointer in C?
A pointer that can access memory outside the current segment (legacy)
What is a near pointer in C?
A pointer limited to the current segment (legacy)
What is a self-referential structure in C?
A structure containing a pointer to its own type
What is a linked list in C?
A data structure with nodes linked via pointers
What is the purpose of the malloc() function in a linked list?
Allocates memory for a new node
What is a double pointer in C?
A pointer to a pointer (e.g., int **ptr)
What is the purpose of a double pointer in C?
Used for dynamic memory allocation or passing pointers to functions
What is a variadic function in C?
A function that accepts a variable number of arguments
Which header file is required for variadic functions?
stdarg.h
What is the purpose of the va_start macro in C?
Initializes access to variadic function arguments
What is the purpose of the va_arg macro in C?
Retrieves the next argument in a variadic function
What is the purpose of the va_end macro in C?
Cleans up after accessing variadic arguments
What is a signal in C?
A software interrupt delivered to a program
Which header file is required for signal handling in C?
signal.h
What is the purpose of the raise() function in C?
Sends a signal to the program
What is the purpose of the signal() function in C?
Sets a handler for a specific signal
What is a floating-point exception in C?
An error like division by zero in floating-point operations
What is the purpose of the math.h header file in C?
Provides mathematical functions like sqrt(), sin()
What is the purpose of the time.h header file in C?
Provides functions for date and time operations
What is the purpose of the ctype.h header file in C?
Provides functions for character classification
What is the purpose of the isalpha() function in C?
Checks if a character is alphabetic
What is the purpose of the isdigit() function in C?
Checks if a character is a digit
What is the purpose of the toupper() function in C?
Converts a character to uppercase
What is the purpose of the tolower() function in C?
Converts a character to lowercase
What is a preprocessor directive in C?
Instructions processed before compilation
What is the purpose of the #elif directive in C?
Provides an else-if condition in preprocessing
What is the purpose of the #undef directive in C?
Undefines a macro
What is a token in C?
A basic building block like keywords, identifiers
What is the maximum length of an identifier in C?
Implementation-dependent (often 31 characters)
What is the purpose of the inline keyword in C?
Suggests inlining a function for optimization

Conclusion

Mastering the C programming language is a vital step for students and professionals aiming to excel in computer science. These 200 one-liner computer C language quiz questions with answers provide a comprehensive resource for quick learning and exam preparation. By practicing these questions, you can strengthen your understanding of C fundamentals, advanced concepts, and common pitfalls. Keep revisiting this C language quiz with answers to stay sharp and confident for your exams and interviews. Happy coding!

Disclaimer

The information provided in this article, including the computer C language quiz questions with answers, is compiled from various trusted online sources for educational purposes only. While efforts have been made to ensure accuracy, we do not guarantee the correctness or completeness of the content. Users are advised to verify answers independently before relying on them for examinations or professional use. The authors and publishers are not liable for any errors, omissions, or consequences arising from the use of this content.

Also Read: 200 One-Liner Computer Network Quiz with Answers

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Computer

200+ Basic Computer MCQs with Answers for GK and Exam Preparation

Post author By admin
Post date May 31, 2025

Introduction
Mastering basic computer MCQs is essential for students and professionals preparing for competitive exams like SSC, Banking, UPSC, Railway, and other entrance tests. These multiple-choice questions cover fundamental topics such as computer hardware, software, networking, operating systems, and more, making them a valuable resource for enhancing general knowledge (GK) and technical aptitude. This comprehensive collection of 200+ basic computer MCQs with answers and one-liner explanations is designed to help you assess your understanding, identify knowledge gaps, and build a strong foundation in computer basics. Each question is sourced from authentic educational platforms to ensure accuracy and relevance, making this a good guide for exam success.

Basic Computer MCQs with Answers and Explanations (1-100)

What is the full form of COMPUTER?
a) Common Operating Machine Purposely Used for Technical and Educational Research
b) Common Organized Machine for Processing and Utility Tasks
c) Central Operating Machine for Programming and Utility Research
d) None of the above
Answer: a
Explanation: COMPUTER stands for Common Operating Machine Purposely Used for Technical and Educational Research, reflecting its purpose in technical tasks.
Who is known as the father of computers?
a) Alan Turing
b) Charles Babbage
c) John Atanasoff
d) Bill Gates
Answer: b
Explanation: Charles Babbage designed the Analytical Engine, considered the first programmable computer.
What is the primary function of the CPU?
a) Store data
b) Process data
c) Display output
d) Input data
Answer: b
Explanation: The CPU (Central Processing Unit) processes instructions by performing fetch, decode, and execute operations.
Which of the following is an input device?
a) Monitor
b) Printer
c) Keyboard
d) Speaker
Answer: c
Explanation: A keyboard allows users to input data into a computer system.
What is the main memory of a computer called?
a) ROM
b) RAM
c) Cache
d) Hard Disk
Answer: b
Explanation: RAM (Random Access Memory) is the main memory used for temporary data storage during processing.
Which device is used to connect a computer to the internet?
a) Router
b) CPU
c) Monitor
d) Keyboard
Answer: a
Explanation: A router connects a computer network to the internet by directing data traffic.
What does GUI stand for?
a) General User Interface
b) Graphical User Interface
c) Global User Integration
d) Guided User Interface
Answer: b
Explanation: GUI allows users to interact with computers through graphical elements like icons and windows.
Which of the following is an operating system?
a) Microsoft Word
b) Linux
c) Adobe Photoshop
d) Google Chrome
Answer: b
Explanation: Linux is an operating system that manages hardware and software resources.
What is the full form of HTTP?
a) HyperText Transfer Protocol
b) HighText Transmission Protocol
c) HyperTerminal Transfer Process
d) None of the above
Answer: a
Explanation: HTTP is the protocol used for transferring data over the World Wide Web.
Which is the first electronic computer?
a) ENIAC
b) UNIVAC
c) Colossus
d) ABC
Answer: c
Explanation: Colossus, built during WWII, was the first electronic computer for code-breaking.
What is the function of an operating system?
a) Manage hardware and software resources
b) Create documents
c) Design graphics
d) Browse the internet
Answer: a
Explanation: An operating system coordinates between hardware and software for efficient functioning.
Which of the following is a secondary storage device?
a) RAM
b) Cache
c) Hard Disk
d) Register
Answer: c
Explanation: Hard disks store data permanently, unlike temporary memory like RAM.
What does LAN stand for?
a) Local Area Network
b) Large Area Network
c) Logical Access Network
d) None of the above
Answer: a
Explanation: LAN connects devices within a limited area, like an office or home.
Which language is used for web development?
a) Python
b) HTML
c) C++
d) Java
Answer: b
Explanation: HTML is the standard language for creating web pages.
What is the smallest unit of digital information?
a) Byte
b) Bit
c) Kilobyte
d) Megabyte
Answer: b
Explanation: A bit is the smallest unit, representing a 0 or 1 in digital data.
Which of the following is a volatile memory?
a) ROM
b) Hard Disk
c) RAM
d) Flash Drive
Answer: c
Explanation: RAM loses data when power is turned off, making it volatile.
What does BIOS stand for?
a) Basic Input/Output System
b) Binary Input/Output System
c) Basic Internal Operating System
d) None of the above
Answer: a
Explanation: BIOS initializes hardware during the boot process of a computer.
Which company developed the Windows operating system?
a) Apple
b) Microsoft
c) IBM
d) Google
Answer: b
Explanation: Microsoft developed Windows, a widely used operating system.
What is the purpose of a firewall?
a) Protect against viruses
b) Control network traffic
c) Store data
d) Increase internet speed
Answer: b
Explanation: A firewall monitors and controls incoming and outgoing network traffic for security.
Which of the following is a high-level programming language?
a) Assembly
b) Machine Language
c) Python
d) Binary Code
Answer: c
Explanation: Python is a high-level language, easy for humans to read and write.

What is the full form of USB?
a) Universal Serial Bus
b) United System Bus
c) Universal Storage Buffer
d) Unified Serial Bus
Answer: a
Explanation: USB is a standard for connecting peripherals to computers.
Which device converts digital signals to analog signals?
a) Router
b) Modem
c) Switch
d) Hub
Answer: b
Explanation: A modem converts digital signals to analog for internet connectivity.
What is the purpose of cache memory?
a) Permanent storage
b) Speed up data access
c) Input data
d) Display output
Answer: b
Explanation: Cache memory stores frequently used data for faster CPU access.
Which of the following is an output device?
a) Scanner
b) Printer
c) Mouse
d) Keyboard
Answer: b
Explanation: A printer produces physical output from digital data.
What does URL stand for?
a) Uniform Resource Locator
b) Universal Reference Link
c) Unified Resource Location
d) None of the above
Answer: a
Explanation: A URL specifies the address of a resource on the internet.
Which generation of computers used vacuum tubes?
a) First
b) Second
c) Third
d) Fourth
Answer: a
Explanation: First-generation computers (1940s-1950s) used vacuum tubes for processing.
What is the full form of ROM?
a) Read-Only Memory
b) Random Output Memory
c) Read-Write Memory
d) None of the above
Answer: a
Explanation: ROM stores data permanently and is non-volatile.
Which protocol is used for email transmission?
a) FTP
b) SMTP
c) HTTP
d) DNS
Answer: b
Explanation: SMTP (Simple Mail Transfer Protocol) is used for sending emails.
What is the function of a compiler?
a) Execute programs
b) Convert high-level code to machine code
c) Debug programs
d) Store data
Answer: b
Explanation: A compiler translates high-level programming code into machine code.
Which of the following is a cloud storage service?
a) Microsoft Excel
b) Google Drive
c) Adobe Photoshop
d) Windows
Answer: b
Explanation: Google Drive provides online storage and file-sharing services.

What is the purpose of an IP address?
a) Identify a device on a network
b) Store data
c) Run software
d) Display graphics
Answer: a
Explanation: An IP address uniquely identifies a device on a network.
Which of the following is a database management system?
a) Oracle
b) Windows
c) Linux
d) Photoshop
Answer: a
Explanation: Oracle is a popular relational database management system.
What does DNS stand for?
a) Domain Name System
b) Digital Network Service
c) Data Name System
d) None of the above
Answer: a
Explanation: DNS translates domain names to IP addresses for internet access.
Which key is used to refresh a webpage?
a) F1
b) F5
c) F12
d) Ctrl
Answer: b
Explanation: The F5 key reloads a webpage in most browsers.
What is the full form of PDF?
a) Portable Document Format
b) Public Data File
c) Personal Document Format
d) None of the above
Answer: a
Explanation: PDF is a file format for sharing documents across platforms.

Basic Computer MCQs (36-100) with Answers and Explanations

What is a computer virus?
a) A hardware component
b) A malicious software program
c) A type of operating system
d) A network protocol
Answer: b
Explanation: A computer virus is malicious software that spreads and disrupts system operations.
Which programming language is known for its use in data analysis?
a) HTML
b) Python
c) Assembly
d) SQL
Answer: b
Explanation: Python is widely used for data analysis due to its simplicity and libraries like Pandas.
Which storage device uses flash memory?
a) Floppy Disk
b) Hard Disk Drive
c) USB Flash Drive
d) Magnetic Tape
Answer: c
Explanation: USB flash drives use flash memory for fast, portable data storage.
What is the purpose of a network topology?
a) To manage software updates
b) To define the layout of a network
c) To store data securely
d) To run applications
Answer: b
Explanation: Network topology describes the arrangement of devices in a network.
Which software type manages computer hardware?
a) Application Software
b) Utility Software
c) System Software
d) Development Software
Answer: c
Explanation: System software, like operating systems, manages hardware resources.
What does Trojan Horse refer to in computing?
a) A type of hardware
b) A malicious program disguised as legitimate software
c) A network protocol
d) A programming language
Answer: b
Explanation: A Trojan Horse tricks users into installing malware by appearing harmless.
Which of the following is a low-level programming language?
a) Python
b) Java
c) Assembly
d) C++
Answer: c
Explanation: Assembly language is closer to machine code, making it low-level.
Which storage device has the highest storage capacity?
a) CD-ROM
b) DVD
c) Hard Disk Drive
d) Floppy Disk
Answer: c
Explanation: Hard disk drives typically offer terabytes of storage, far exceeding others.
Which network topology connects all devices in a circular fashion?
a) Bus
b) Ring
c) Star
d) Mesh
Answer: b
Explanation: In a ring topology, each device connects to the next, forming a circle.
What is the role of utility software?
a) Perform specific user tasks
b) Maintain and optimize system performance
c) Develop applications
d) Manage network traffic
Answer: b
Explanation: Utility software helps maintain and optimize computer systems, e.g., antivirus programs.
What is ransomware?
a) A type of hardware failure
b) Malware that encrypts data and demands payment
c) A network configuration tool
d) A programming framework
Answer: b
Explanation: Ransomware locks data and demands a ransom for decryption.
What is a variable in programming?
a) A fixed value
b) A storage location with a name and value
c) A hardware component
d) A network address
Answer: b
Explanation: Variables store data that can change during program execution.
Which of the following is a non-volatile storage device?
a) RAM
b) Cache
c) SSD
d) Register
Answer: c
Explanation: SSDs retain data without power, making them non-volatile.
In which network topology does each device connect to every other device?
a) Star
b) Bus
c) Mesh
d) Ring
Answer: c
Explanation: Mesh topology provides direct connections between all devices.
Which type of software is Microsoft Excel?
a) System Software
b) Application Software
c) Utility Software
d) Firmware
Answer: b
Explanation: Microsoft Excel is application software for spreadsheet tasks.
What is the purpose of a worm in computing?
a) Enhance system performance
b) Replicate and spread across networks
c) Manage database queries
d) Create backups
Answer: b
Explanation: A worm is malware that self-replicates to infect other systems.
Which programming concept refers to reusable code blocks?
a) Loop
b) Function
c) Variable
d) Array
Answer: b
Explanation: Functions are reusable code blocks designed for specific tasks.
Which storage device is typically used for backups?
a) RAM
b) External Hard Drive
c) Cache
d) Register
Answer: b
Explanation: External hard drives are commonly used for data backups.
Which network topology uses a central hub or switch?
a) Ring
b) Bus
c) Star
d) Tree
Answer: c
Explanation: Star topology connects all devices to a central hub or switch.
What is firmware?
a) Software for user applications
b) Permanent software embedded in hardware
c) A type of virus
d) A network protocol
Answer: b
Explanation: Firmware is software embedded in hardware to control its functions.
What is spyware?
a) Software for system optimization
b) Malware that secretly collects user data
c) A type of database
d) A programming tool
Answer: b
Explanation: Spyware covertly monitors and collects user information.
What does the term ‘loop’ refer to in programming?
a) A data storage method
b) A structure for repeating code
c) A network configuration
d) A type of virus
Answer: b
Explanation: Loops repeat a block of code until a condition is met.
Which of the following is an optical storage device?
a) Hard Disk
b) SSD
c) DVD
d) USB Drive
Answer: c
Explanation: DVDs use optical technology to store data via laser reading.
Which topology is most fault-tolerant?
a) Bus
b) Ring
c) Mesh
d) Star
Answer: c
Explanation: Mesh topology’s multiple connections ensure fault tolerance.
What is the purpose of a debugger in programming?
a) Write code
b) Identify and fix errors in code
c) Compile code
d) Store data
Answer: b
Explanation: A debugger helps identify and resolve errors in a program.
What is adware?
a) Software for creating ads
b) Malware that displays unwanted advertisements
c) A type of database software
d) A network protocol
Answer: b
Explanation: Adware displays intrusive ads, often compromising user experience.
Which programming concept stores multiple values in a single structure?
a) Variable
b) Function
c) Array
d) Loop
Answer: c
Explanation: Arrays store multiple values under a single variable name.
Which storage device is slowest in data access?
a) SSD
b) Hard Disk Drive
c) Magnetic Tape
d) RAM
Answer: c
Explanation: Magnetic tape has slower access times, used for archival storage.
Which network topology shares a single communication line?
a) Star
b) Bus
c) Ring
d) Mesh
Answer: b
Explanation: Bus topology uses a single cable for all device communication.
What is open-source software?
a) Software with restricted access
b) Software with freely available source code
c) Paid software
d) Hardware control software
Answer: b
Explanation: Open-source software allows users to view and modify its source code.
What is the purpose of a keylogger?
a) Record keystrokes for malicious purposes
b) Optimize keyboard performance
c) Manage software licenses
d) Create backups
Answer: a
Explanation: Keyloggers secretly record keystrokes to steal sensitive information.
What does OOP stand for in programming?
a) Object-Oriented Programming
b) Operational Output Processing
c) Organized Object Protocol
d) None of the above
Answer: a
Explanation: OOP uses objects to structure code for modularity and reuse.
Which storage device is portable and uses optical technology?
a) USB Flash Drive
b) CD-ROM
c) Hard Disk
d) SSD
Answer: b
Explanation: CD-ROMs are portable optical storage devices.
Which network topology combines multiple topologies?
a) Star
b) Bus
c) Tree
d) Ring
Answer: c
Explanation: Tree topology integrates star and bus topologies hierarchically.
What is proprietary software?
a) Free software with open code
b) Software with restricted licensing
c) Software for hardware control
d) None of the above
Answer: b
Explanation: Proprietary software has restricted access and licensing.
What is phishing in cybersecurity?
a) A hardware attack
b) A social engineering attack to steal data
c) A type of virus
d) A network protocol
Answer: b
Explanation: Phishing tricks users into revealing sensitive information.
What is an algorithm in programming?
a) A hardware component
b) A set of instructions to solve a problem
c) A type of virus
d) A storage device
Answer: b
Explanation: An algorithm is a step-by-step procedure to solve a problem.
Which storage device is used in digital cameras?
a) Floppy Disk
b) SD Card
c) Hard Disk
d) Magnetic Tape
Answer: b
Explanation: SD cards are compact flash storage used in cameras.
Which topology is easiest to install?
a) Mesh
b) Star
c) Ring
d) Bus
Answer: b
Explanation: Star topology is simple to install with a central hub.
What is the role of a spreadsheet software?
a) Manage hardware
b) Organize and analyze data in tables
c) Create websites
d) Secure networks
Answer: b
Explanation: Spreadsheet software like Excel organizes data in tabular form.
What is a rootkit?
a) A type of utility software
b) Malware that hides within the system
c) A programming language
d) A network device
Answer: b
Explanation: Rootkits conceal malicious activities on a system.
What is conditional programming?
a) Code that repeats indefinitely
b) Code that executes based on conditions
c) Code for hardware control
d) Code for data storage
Answer: b
Explanation: Conditional programming uses if-then-else statements for decision-making.
Which storage device is obsolete today?
a) SSD
b) Floppy Disk
c) USB Drive
d) Hard Disk
Answer: b
Explanation: Floppy disks are outdated due to low capacity and slow speed.
Which topology is most cost-effective for small networks?
a) Mesh
b) Star
c) Bus
d) Ring
Answer: c
Explanation: Bus topology is cost-effective due to minimal cabling needs.
What is the purpose of database software?
a) Create graphics
b) Manage and organize data
c) Run operating systems
d) Browse the internet
Answer: b
Explanation: Database software organizes and retrieves data efficiently.
What is a firewall’s primary function?
a) Store data
b) Protect against unauthorized network access
c) Increase processing speed
d) Run applications
Answer: b
Explanation: Firewalls block unauthorized access to protect networks.
What is a data type in programming?
a) A hardware component
b) A classification of data like integer or string
c) A network protocol
d) A storage device
Answer: b
Explanation: Data types define the kind of data a variable can hold.
Which storage device is used for long-term archival?
a) RAM
b) Magnetic Tape
c) Cache
d) SSD
Answer: b
Explanation: Magnetic tape is cost-effective for long-term data archival.
Which topology requires the most cabling?
a) Star
b) Bus
c) Mesh
d) Ring
Answer: c
Explanation: Mesh topology requires extensive cabling for full connectivity.
What is shareware?
a) Free software with no restrictions
b) Software available for trial with payment required for full use
c) Hardware control software
d) A type of virus
Answer: b
Explanation: Shareware offers limited features for free, requiring payment for full access.
What is a DDoS attack?
a) A hardware failure
b) Overloading a server with traffic to disrupt service
c) A programming error
d) A storage issue
Answer: b
Explanation: DDoS (Distributed Denial of Service) attacks flood servers to disrupt access.
What is recursion in programming?
a) A loop that runs indefinitely
b) A function that calls itself
c) A data storage method
d) A network protocol
Answer: b
Explanation: Recursion involves a function calling itself to solve a problem.
Which storage device is fastest?
a) Hard Disk Drive
b) SSD
c) CD-ROM
d) Magnetic Tape
Answer: b
Explanation: SSDs offer faster data access than other storage devices.
Which topology is used in modern LANs?
a) Bus
b) Ring
c) Star
d) Mesh
Answer: c
Explanation: Star topology is widely used in LANs for its simplicity and reliability.
What is a word processor?
a) Software for creating and editing text documents
b) A hardware component
c) A network protocol
d) A type of virus
Answer: a
Explanation: Word processors like Microsoft Word are used for text document tasks.
What is a botnet?
a) A group of infected computers controlled remotely
b) A type of programming language
c) A storage device
d) A network topology
Answer: a
Explanation: Botnets are networks of compromised devices used for malicious activities.
What is a constant in programming?
a) A value that changes during execution
b) A fixed value that cannot change
c) A hardware component
d) A network address
Answer: b
Explanation: Constants hold fixed values throughout a program’s execution.
Which storage device is used in smartphones?
a) Floppy Disk
b) Flash Memory
c) Magnetic Tape
d) Hard Disk
Answer: b
Explanation: Flash memory is compact and used in smartphones for storage.
Which topology is prone to single-point failure?
a) Mesh
b) Star
c) Ring
d) Bus
Answer: b
Explanation: Star topology fails if the central hub malfunctions.
What is a compiler’s output?
a) Source code
b) Machine code
c) Database
d) Network signal
Answer: b
Explanation: A compiler converts source code into machine code for execution.
What is malware short for?
a) Malicious Software
b) Managed Software
c) Modular Software
d) None of the above
Answer: a
Explanation: Malware is software designed to harm or exploit systems.
What is a pointer in programming?
a) A variable that stores a memory address
b) A network device
c) A type of loop
d) A storage device
Answer: a
Explanation: Pointers store memory addresses to reference data.
Which storage device uses spinning platters?
a) SSD
b) Hard Disk Drive
c) USB Flash Drive
d) CD-ROM
Answer: b
Explanation: Hard disk drives use spinning platters for data storage.
Which topology supports easy device addition?
a) Bus
b) Ring
c) Star
d) Mesh
Answer: c
Explanation: Star topology allows easy addition of devices via the central hub.
What is the purpose of presentation software?
a) Manage databases
b) Create visual slideshows
c) Secure networks
d) Run operating systems
Answer: b
Explanation: Presentation software like PowerPoint creates visual slideshows.

What is the function of an ALU in a CPU?
a) Store data
b) Perform arithmetic and logical operations
c) Manage memory
d) Control input devices
Answer: b
Explanation: The ALU (Arithmetic Logic Unit) handles mathematical and logical computations.
Which of the following is a type of network topology?
a) Star
b) Cloud
c) Server
d) Software
Answer: a
Explanation: Star topology connects all devices to a central hub.
What is the purpose of an antivirus program?
a) Increase internet speed
b) Protect against malware
c) Manage files
d) Create backups
Answer: b
Explanation: Antivirus software detects and removes malicious programs.
Which of the following is an example of application software?
a) Windows
b) Linux
c) Microsoft Word
d) BIOS
Answer: c
Explanation: Microsoft Word is used for specific tasks like document creation.
What does SSD stand for?
a) Solid State Drive
b) Serial Storage Device
c) System Software Disk
d) None of the above
Answer: a
Explanation: SSD is a fast, non-volatile storage device using flash memory.

Basic Computer MCQs (106-200) with Answers and Explanations

What is a binary system in computing?
a) A system using base-10 numbers
b) A system using only 0s and 1s
c) A system for network protocols
d) A type of storage device
Answer: b
Explanation: The binary system uses 0s and 1s to represent data in computers.
What is the main function of the control unit in a CPU?
a) Perform calculations
b) Store data
c) Direct operations of the processor
d) Display output
Answer: c
Explanation: The control unit directs the CPU’s operations by managing data flow.
Which internet protocol is used for file transfer?
a) HTTP
b) FTP
c) SMTP
d) DNS
Answer: b
Explanation: FTP (File Transfer Protocol) is used for transferring files over a network.
How many bits are in a byte?
a) 4
b) 8
c) 16
d) 32
Answer: b
Explanation: A byte consists of 8 bits, used to represent a single character.
What is the role of registers in computer architecture?
a) Long-term storage
b) High-speed temporary storage
c) Network connectivity
d) Display graphics
Answer: b
Explanation: Registers are small, fast storage locations in the CPU for temporary data.
What does TCP stand for in networking?
a) Transmission Control Protocol
b) Terminal Control Protocol
c) Transfer Communication Protocol
d) None of the above
Answer: a
Explanation: TCP ensures reliable data transmission over networks.
What is ASCII used for in data representation?
a) Representing images
b) Representing text characters
c) Encrypting data
d) Compressing files
Answer: b
Explanation: ASCII assigns numeric values to text characters for computer use.
What is the purpose of a motherboard in computer architecture?
a) Store data permanently
b) Connect all computer components
c) Execute programs
d) Provide internet access
Answer: b
Explanation: The motherboard is the main circuit board connecting all components.
Which protocol resolves domain names to IP addresses?
a) HTTP
b) FTP
c) DNS
d) SMTP
Answer: c
Explanation: DNS (Domain Name System) translates domain names to IP addresses.
What is the decimal equivalent of the binary number 1010?
a) 8
b) 10
c) 12
d) 14
Answer: b
Explanation: Binary 1010 equals 10 in decimal (1×2³ + 0×2² + 1×2¹ + 0×2⁰).
What is a bus in computer architecture?
a) A storage device
b) A communication pathway for data
c) A programming language
d) A type of virus
Answer: b
Explanation: A bus transfers data between computer components.
Which internet protocol is used for secure data transfer?
a) HTTP
b) HTTPS
c) FTP
d) SMTP
Answer: b
Explanation: HTTPS uses encryption for secure data transfer over the web.
What is Unicode in data representation?
a) A compression algorithm
b) A standard for encoding text characters
c) A type of network protocol
d) A programming language
Answer: b
Explanation: Unicode supports a wide range of characters across languages.
What is the function of a GPU in computer architecture?
a) Manage memory
b) Process graphics and visual data
c) Connect to networks
d) Store files
Answer: b
Explanation: The GPU (Graphics Processing Unit) handles rendering of images and videos.
What does IP stand for in networking?
a) Internet Protocol
b) Internal Processor
c) Integrated Program
d) None of the above
Answer: a
Explanation: IP governs the addressing and routing of data packets.
What is the binary equivalent of the decimal number 7?
a) 111
b) 101
c) 110
d) 100
Answer: a
Explanation: Decimal 7 converts to binary 111 (1×2² + 1×2¹ + 1×2⁰).
What is the purpose of a data bus in computer architecture?
a) Transfer data between components
b) Store program instructions
c) Execute programs
d) Display output
Answer: a
Explanation: The data bus carries data between the CPU, memory, and other components.
Which protocol is used for remote access to a computer?
a) FTP
b) SSH
c) HTTP
d) SMTP
Answer: b
Explanation: SSH (Secure Shell) enables secure remote access to systems.
What is a bit in data representation?
a) A single binary digit
b) A group of 8 bytes
c) A network address
d) A programming command
Answer: a
Explanation: A bit is the smallest unit of digital information, either 0 or 1.
What is the role of a clock in computer architecture?
a) Store data
b) Synchronize operations
c) Connect to the internet
d) Display time
Answer: b
Explanation: The clock synchronizes CPU operations with a regular pulse.
What does UDP stand for in networking?
a) User Datagram Protocol
b) Universal Data Protocol
c) Unified Delivery Protocol
d) None of the above
Answer: a
Explanation: UDP is a fast but less reliable protocol for data transmission.
What is the hexadecimal equivalent of the binary number 1111?
a) A
b) B
c) F
d) E
Answer: c
Explanation: Binary 1111 equals 15 in decimal, which is F in hexadecimal.
What is cache memory in computer architecture?
a) Permanent storage
b) High-speed memory near the CPU
c) A network component
d) A type of software
Answer: b
Explanation: Cache memory speeds up data access for the CPU.
Which protocol is used for sending emails?
a) HTTP
b) FTP
c) SMTP
d) DNS
Answer: c
Explanation: SMTP (Simple Mail Transfer Protocol) handles email transmission.
What is a nibble in data representation?
a) 4 bits
b) 8 bits
c) 16 bits
d) 32 bits
Answer: a
Explanation: A nibble is a group of 4 bits, half of a byte.
What is the purpose of a memory controller in computer architecture?
a) Manage data storage and retrieval
b) Execute programs
c) Connect to networks
d) Display graphics
Answer: a
Explanation: The memory controller manages data flow between CPU and memory.
Which protocol is used for real-time communication, like video calls?
a) FTP
b) RTP
c) SMTP
d) HTTP
Answer: b
Explanation: RTP (Real-time Transport Protocol) supports real-time media streaming.
What is the decimal equivalent of the binary number 1100?
a) 10
b) 12
c) 14
d) 16
Answer: b
Explanation: Binary 1100 equals 12 in decimal (1×2³ + 1×2² + 0×2¹ + 0×2⁰).
What is a pipeline in computer architecture?
a) A storage device
b) A method to process multiple instructions simultaneously
c) A network protocol
d) A type of virus
Answer: b
Explanation: Pipelining allows parallel processing of CPU instructions.
What does DHCP stand for in networking?
a) Dynamic Host Configuration Protocol
b) Data Hosting Control Protocol
c) Direct Host Communication Protocol
d) None of the above
Answer: a
Explanation: DHCP assigns IP addresses dynamically to devices on a network.
What is the purpose of data encoding in computers?
a) Compress files
b) Represent data in a specific format
c) Secure networks
d) Run programs
Answer: b
Explanation: Data encoding formats data for storage or transmission.
What is the role of the arithmetic logic unit (ALU)?
a) Store data
b) Perform arithmetic and logical operations
c) Manage memory
d) Connect to the internet
Answer: b
Explanation: The ALU handles mathematical and logical computations in the CPU.
Which protocol is used for web browsing?
a) FTP
b) HTTP
c) SMTP
d) DNS
Answer: b
Explanation: HTTP (HyperText Transfer Protocol) governs web data transfer.
What is the binary equivalent of the decimal number 13?
a) 1101
b) 1011
c) 1110
d) 1001
Answer: a
Explanation: Decimal 13 converts to binary 1101 (1×2³ + 1×2² + 0×2¹ + 1×2⁰).
What is virtual memory in computer architecture?
a) Physical storage on a hard drive
b) A technique using disk space as RAM
c) A type of cache
d) A network protocol
Answer: b
Explanation: Virtual memory uses disk space to extend RAM capacity.
What does ICMP stand for in networking?
a) Internet Control Message Protocol
b) Internal Communication Management Protocol
c) Integrated Control Message Protocol
d) None of the above
Answer: a
Explanation: ICMP is used for diagnostic and error messaging in networks.
What is the hexadecimal equivalent of the decimal number 10?
a) A
b) B
c) C
d) 9
Answer: a
Explanation: Decimal 10 equals A in hexadecimal.
What is the purpose of an instruction set in computer architecture?
a) Store data
b) Define CPU operations
c) Connect to networks
d) Display graphics
Answer: b
Explanation: The instruction set defines operations a CPU can perform.
Which protocol is used for network time synchronization?
a) NTP
b) FTP
c) HTTP
d) SMTP
Answer: a
Explanation: NTP (Network Time Protocol) synchronizes clocks across networks.
What is a kilobyte in data representation?
a) 1000 bytes
b) 1024 bytes
c) 100 bytes
d) 10 bytes
Answer: b
Explanation: A kilobyte is 1024 bytes in computing.
What is a cache hit in computer architecture?
a) Data found in cache memory
b) Data stored on a hard drive
c) A network error
d) A programming error
Answer: a
Explanation: A cache hit occurs when requested data is found in cache.
What does POP3 stand for in networking?
a) Post Office Protocol version 3
b) Public Operation Protocol
c) Packet Order Protocol
d) None of the above
Answer: a
Explanation: POP3 retrieves emails from a server to a client.
What is the binary equivalent of the hexadecimal number A?
a) 1010
b) 1100
c) 1111
d) 1000
Answer: a
Explanation: Hexadecimal A equals 10 in decimal, or 1010 in binary.
What is a RISC architecture?
a) Complex Instruction Set Computing
b) Reduced Instruction Set Computing
c) Random Instruction Set Computing
d) None of the above
Answer: b
Explanation: RISC uses simple instructions for faster processing.
Which protocol is used for email retrieval?
a) IMAP
b) FTP
c) HTTP
d) DNS
Answer: a
Explanation: IMAP (Internet Message Access Protocol) retrieves emails while keeping them on the server.
What is the decimal equivalent of the binary number 10000?
a) 16
b) 12
c) 8
d) 10
Answer: a
Explanation: Binary 10000 equals 16 in decimal (1×2⁴ + 0×2³ + 0×2² + 0×2¹ + 0×2⁰).
What is the purpose of a northbridge in computer architecture?
a) Connect CPU to memory and GPU
b) Manage storage devices
c) Control network traffic
d) Display output
Answer: a
Explanation: The northbridge connects the CPU to high-speed components like memory.
What does SNMP stand for in networking?
a) Simple Network Management Protocol
b) Secure Network Monitoring Protocol
c) System Network Management Protocol
d) None of the above
Answer: a
Explanation: SNMP manages and monitors network devices.
What is a megabyte in data representation?
a) 1024 bytes
b) 1024 kilobytes
c) 1000 bytes
d) 1000 kilobytes
Answer: b
Explanation: A megabyte is 1024 kilobytes in computing.
What is a southbridge in computer architecture?
a) Connects CPU to peripheral devices
b) Manages high-speed memory
c) Executes programs
d) Stores data
Answer: a
Explanation: The southbridge handles communication with slower peripherals.
Which protocol is used for secure file transfer?
a) FTP
b) SFTP
c) HTTP
d) SMTP
Answer: b
Explanation: SFTP (Secure File Transfer Protocol) encrypts file transfers.
What is the hexadecimal equivalent of the binary number 10100?
a) 12
b) 14
c) 16
d) 18
Answer: b
Explanation: Binary 10100 equals 20 in decimal, or 14 in hexadecimal.
What is a fetch-decode-execute cycle in computer architecture?
a) A storage process
b) The CPU’s instruction processing cycle
c) A network protocol
d) A data compression method
Answer: b
Explanation: The cycle describes how the CPU processes instructions.
What does ARP stand for in networking?
a) Address Resolution Protocol
b) Application Request Protocol
c) Access Resolution Protocol
d) None of the above
Answer: a
Explanation: ARP maps IP addresses to MAC addresses.
What is a gigabyte in data representation?
a) 1024 megabytes
b) 1000 megabytes
c) 1024 kilobytes
d) 1000 kilobytes
Answer: a
Explanation: A gigabyte is 1024 megabytes in computing.
What is the purpose of a memory address in computer architecture?
a) Store programs
b) Identify data location in memory
c) Connect to networks
d) Display graphics
Answer: b
Explanation: A memory address specifies where data is stored in memory.
Which protocol is used for VoIP communication?
a) SIP
b) FTP
c) SMTP
d) DNS
Answer: a
Explanation: SIP (Session Initiation Protocol) manages VoIP calls.
What is the binary equivalent of the decimal number 20?
a) 10100
b) 10010
c) 11000
d) 11100
Answer: a
Explanation: Decimal 20 converts to binary 10100 (1×2⁴ + 0×2³ + 1×2² + 0×2¹ + 0×2⁰).
What is a CISC architecture?
a) Complex Instruction Set Computing
b) Compact Instruction Set Computing
c) Centralized Instruction Set Computing
d) None of the above
Answer: a
Explanation: CISC uses complex instructions for versatile processing.
What does TFTP stand for in networking?
a) Trivial File Transfer Protocol
b) Terminal File Transfer Protocol
c) Temporary File Transmission Protocol
d) None of the above
Answer: a
Explanation: TFTP is a simple protocol for file transfers.
What is the decimal equivalent of the hexadecimal number F?
a) 13
b) 14
c) 15
d) 16
Answer: c
Explanation: Hexadecimal F equals 15 in decimal.
What is the purpose of a memory management unit (MMU)?
a) Execute programs
b) Manage virtual memory mappings
c) Connect to networks
d) Display output
Answer: b
Explanation: The MMU maps virtual addresses to physical memory.
Which protocol is used for network management?
a) SNMP
b) FTP
c) HTTP
d) SMTP
Answer: a
Explanation: SNMP (Simple Network Management Protocol) monitors network devices.
What is a terabyte in data representation?
a) 1024 gigabytes
b) 1000 gigabytes
c) 1024 megabytes
d) 1000 megabytes
Answer: a
Explanation: A terabyte is 1024 gigabytes in computing.
What is the role of an I/O controller in computer architecture?
a) Manage input/output operations
b) Execute programs
c) Store data
d) Connect to networks
Answer: a
Explanation: The I/O controller manages communication with peripheral devices.
What does IMAP stand for in networking?
a) Internet Message Access Protocol
b) Internal Message Application Protocol
c) Integrated Mail Access Protocol
d) None of the above
Answer: a
Explanation: IMAP retrieves emails while keeping them on the server.
What is the binary equivalent of the hexadecimal number 1A?
a) 11010
b) 10010
c) 11100
d) 10110
Answer: a
Explanation: Hexadecimal 1A equals 26 in decimal, or 11010 in binary.
What is a memory hierarchy in computer architecture?
a) A network structure
b) A layered organization of memory types
c) A programming concept
d) A type of virus
Answer: b
Explanation: Memory hierarchy organizes memory by speed and size.
Which protocol is used for streaming media?
a) RTP
b) FTP
c) SMTP
d) DNS
Answer: a
Explanation: RTP (Real-time Transport Protocol) supports media streaming.
What is the decimal equivalent of the binary number 11110?
a) 28
b) 30
c) 32
d) 34
Answer: b
Explanation: Binary 11110 equals 30 in decimal (1×2⁴ + 1×2³ + 1×2² + 1×2¹ + 0×2⁰).
What is the purpose of a chipset in computer architecture?
a) Store data
b) Manage communication between components
c) Execute programs
d) Connect to the internet
Answer: b
Explanation: The chipset manages data flow between CPU, memory, and peripherals.
What does NAT stand for in networking?
a) Network Address Translation
b) Network Access Terminal
c) National Address Transmission
d) None of the above
Answer: a
Explanation: NAT translates private IP addresses to public ones.
What is a petabyte in data representation?
a) 1024 terabytes
b) 1000 terabytes
c) 1024 gigabytes
d) 1000 gigabytes
Answer: a
Explanation: A petabyte is 1024 terabytes in computing.
What is the purpose of an interrupt in computer architecture?
a) Store data
b) Signal the CPU to handle an event
c) Connect to networks
d) Display graphics
Answer: b
Explanation: Interrupts alert the CPU to prioritize specific tasks.
Which protocol is used for secure web browsing?
a) HTTP
b) HTTPS
c) FTP
d) SMTP
Answer: b
Explanation: HTTPS encrypts web traffic for secure browsing.
What is the hexadecimal equivalent of the binary number 100000?
a) 20
b) 22
c) 24
d) 26
Answer: a
Explanation: Binary 100000 equals 32 in decimal, or 20 in hexadecimal.
What is a superscalar architecture?
a) Executes multiple instructions simultaneously
b) Stores large amounts of data
c) Manages network traffic
d) Displays graphics
Answer: a
Explanation: Superscalar CPUs execute multiple instructions in parallel.
What does IGMP stand for in networking?
a) Internet Group Management Protocol
b) Internal Gateway Management Protocol
c) Integrated Group Message Protocol
d) None of the above
Answer: a
Explanation: IGMP manages multicast group memberships in networks.
What is the binary equivalent of the decimal number 25?
a) 11001
b) 10101
c) 11101
d) 10001
Answer: a
Explanation: Decimal 25 converts to binary 11001 (1×2⁴ + 1×2³ + 0×2² + 0×2¹ + 1×2⁰).
What is a memory leak in computer architecture?
a) Unauthorized data access
b) Unreleased memory by a program
c) A network failure
d) A hardware malfunction
Answer: b
Explanation: A memory leak occurs when a program fails to release allocated memory.
Which protocol is used for resolving MAC addresses?
a) ARP
b) FTP
c) SMTP
d) DNS
Answer: a
Explanation: ARP (Address Resolution Protocol) resolves IP addresses to MAC addresses.
What is the decimal equivalent of the hexadecimal number 1F?
a) 29
b) 30
c) 31
d) 32
Answer: c
Explanation: Hexadecimal 1F equals 31 in decimal (1×16¹ + 15×16⁰).
What is the purpose of a DMA controller in computer architecture?
a) Execute programs
b) Transfer data without CPU involvement
c) Manage network traffic
d) Store data
Answer: b
Explanation: DMA (Direct Memory Access) allows direct data transfer to memory.
What does PPTP stand for in networking?
a) Point-to-Point Tunneling Protocol
b) Packet Processing Transmission Protocol
c) Public Point Transfer Protocol
d) None of the above
Answer: a
Explanation: PPTP creates secure VPN connections.
What is a zettabyte in data representation?
a) 1024 petabytes
b) 1024 exabytes
c) 1000 petabytes
d) 1000 exabytes
Answer: b
Explanation: A zettabyte is 1024 exabytes in computing.
What is the purpose of a BIOS chip in computer architecture?
a) Store user data
b) Initialize hardware during boot
c) Connect to networks
d) Run applications
Answer: b
Explanation: The BIOS chip initializes hardware during system startup.
Which protocol is used for email sending and receiving?
a) SMTP and IMAP
b) FTP and HTTP
c) DNS and SNMP
d) None of the above
Answer: a
Explanation: SMTP sends emails, while IMAP retrieves them.
What is the binary equivalent of the decimal number 30?
a) 11110
b) 11010
c) 11100
d) 10110
Answer: a
Explanation: Decimal 30 converts to binary 11110 (1×2⁴ + 1×2³ + 1×2² + 1×2¹ + 0×2⁰).
What is a hyperthreading in computer architecture?
a) A storage technique
b) A method to run multiple threads on a single core
c) A network protocol
d) A data compression method
Answer: b
Explanation: Hyperthreading allows a CPU core to handle multiple threads.
What does RIP stand for in networking?
a) Routing Information Protocol
b) Remote Internet Protocol
c) Rapid Information Processing
d) None of the above
Answer: a
Explanation: RIP is a routing protocol for network data paths.
What is the hexadecimal equivalent of the binary number 111000?
a) 38
b) 36
c) 34
d) 32
Answer: b
Explanation: Binary 111000 equals 56 in decimal, or 36 in hexadecimal.
What is a von Neumann architecture?
a) Separate memory for data and instructions
b) Shared memory for data and instructions
c) A network topology
d) A type of virus
Answer: b
Explanation: Von Neumann architecture uses shared memory for data and instructions.
Which protocol is used for secure remote access?
a) FTP
b) SSH
c) HTTP
d) SMTP
Answer: b
Explanation: SSH (Secure Shell) provides secure remote system access.
What is the decimal equivalent of the binary number 101000?
a) 40
b) 42
c) 44
d) 46
Answer: a
Explanation: Binary 101000 equals 40 in decimal (1×2⁵ + 0×2⁴ + 1×2³ + 0×2² + 0×2¹ + 0×2⁰).
What is the purpose of a clock speed in computer architecture?
a) Measure storage capacity
b) Determine CPU processing speed
c) Manage network traffic
d) Store data
Answer: b
Explanation: Clock speed measures how many cycles a CPU can perform per second.

Conclusion
This collection of 200+ basic computer MCQs with answers is a powerful tool for students and exam aspirants aiming to strengthen their general knowledge and excel in competitive exams. Covering essential topics like hardware, software, networking, and programming, these questions provide a comprehensive foundation in computer fundamentals. By practicing these basic computer MCQs, you can enhance your understanding, boost confidence, and prepare effectively for exams like SSC, Banking, UPSC, and more. Keep exploring and practicing to stay ahead in your academic and professional journey!

Disclaimer
The following basic computer MCQs and answers are compiled for educational purposes to aid students and exam aspirants in their preparation. While every effort has been made to ensure accuracy by referencing authentic sources, we recommend cross-verifying answers with trusted resources before using them in high-stakes examinations. The author and publisher are not responsible for any errors or discrepancies that may arise from the use of this content.

Also Read: Computer GK Questions (One-Liners)

Tags basic computer MCQs, basic computer questions and answers, computer awareness questions, computer basics quiz, computer fundamentals MCQs, computer MCQs for competitive exams, computer science MCQs, exam preparation MCQs, general knowledge computer quiz, Gk computer questions and answers

Computer

Computer GK Questions (One-Liners)

Post author By admin
Post date October 20, 2024

Who is known as the father of computers?
What does CPU stand for?
Which device is used to input data into a computer?
What does RAM stand for?
What is the full form of WWW?
Who invented the first mechanical computer?
Which part of the computer performs the arithmetic and logical operations?
What is the brain of the computer?
What type of software is an operating system?
Which key is used to refresh a webpage?
What is the full form of USB?
Who is the founder of Microsoft?
What does the acronym ROM stand for?
Which programming language is known as the ‘mother of all languages’?
What does HTTP stand for?
What type of memory is used to store the BIOS settings?
What is the primary function of a router?
Which component is used for permanent data storage?
What is the main function of an operating system?
Who invented the World Wide Web?
What is the default file extension for a Microsoft Word document?
What type of device is a printer?
What is the shortcut for copying text in a computer?
Which component in a computer stores the operating system and application software?
What does DNS stand for?
What is the full form of HTML?
What is the term for unsolicited email?
Which company developed the Android operating system?
What is the name of the first general-purpose electronic computer?
What is the full form of PDF?
What is the function of a modem?
What is the smallest unit of data in a computer?
Which programming language is primarily used for web development?
What does GUI stand for?
Which device is used to connect computers over a network?
What is the full form of IP in networking?
What is the function of the Control Unit in a CPU?
Who is known as the father of the Internet?
What does BIOS stand for?
Which device is used to capture images and videos in a computer?
What does OS stand for in computing?
Which key is used to delete characters to the right of the cursor?
What is the full form of LAN?
Who is credited with developing the C programming language?
What does MAC stand for in networking?
Which programming language is used for artificial intelligence applications?
What is the term for a computer virus that replicates itself?
What is the full form of SQL?
Which device is used to display the output on a screen?
What does FTP stand for in computing?
What is the full form of VPN?
Which company developed the first graphical web browser?
What is the most common type of secondary storage device?
What does IoT stand for?
Who developed the Python programming language?
What is the basic unit of a digital image?
What is the main function of a firewall in a computer system?
What does CD-ROM stand for?
What is a kernel in an operating system?
What does URL stand for?
What is the full form of ALU in computing?
What is the main purpose of cloud computing?
What is a byte in computer terminology?
What is a compiler used for?
What does TCP stand for in networking?
Who invented the first email system?
What is the function of a cache memory?
What is the full form of VPN in networking?
What does SMTP stand for?
What is the term used for temporary data storage?
Which is the smallest form of memory?
What does SSD stand for in storage devices?
What is the term for unwanted software that harms a computer system?
What does WAN stand for in networking?
Who invented the first web browser?
What is the function of the address bar in a web browser?
What does the term “booting” refer to in computers?
What is the primary purpose of an antivirus software?
What is the full form of HTTP in computing?
What is the full form of CMOS in computing?
What does SSH stand for in network communication?
What is a motherboard in a computer?
What does ASCII stand for?
What is the function of a DNS server in the Internet?
What is the difference between a bit and a byte?
What does Bluetooth technology enable?
What is a pixel in computer graphics?
What is the full form of RFID?
What does HTTPS stand for?
What does DHCP stand for in networking?
Who developed the Linux operating system?
What is an IP address used for?
What does PNG stand for in image formats?
What is the function of a GPU in computers?
What is malware in computer terminology?
What is the full form of VGA?
What does VPN enable in terms of connectivity?
What is a proxy server used for?
What is a trojan horse in computing?
What does Wi-Fi stand for?

Answers to Computer GK Questions (One-Liners)

Charles Babbage
Central Processing Unit
Keyboard
Random Access Memory
World Wide Web
Charles Babbage
Arithmetic Logic Unit (ALU)
CPU
System software
F5
Universal Serial Bus
Bill Gates
Read Only Memory
Assembly language
Hypertext Transfer Protocol
CMOS
Direct data traffic between networks
Hard Drive
Manages hardware and software resources
Tim Berners-Lee
.docx
Output device
Ctrl + C
Hard Disk Drive
Domain Name System
Hypertext Markup Language
Spam
Google
ENIAC
Portable Document Format
Convert digital data into analog signals and vice versa
Bit
JavaScript
Graphical User Interface
Network Interface Card (NIC)
Internet Protocol
Directs operations in the CPU
Vint Cerf
Basic Input/Output System
Webcam
Operating System
Delete key
Local Area Network
Dennis Ritchie
Media Access Control
Prolog
Worm
Structured Query Language
Monitor
File Transfer Protocol
Virtual Private Network
Netscape
Hard Disk Drive (HDD)
Internet of Things
Guido van Rossum
Pixel
To prevent unauthorized access to a computer system
Compact Disc Read-Only Memory
Core part of an operating system
Uniform Resource Locator
Arithmetic Logic Unit
To deliver computing services over the Internet
A group of 8 bits
Convert high-level language code into machine code
Transmission Control Protocol
Ray Tomlinson
Store frequently accessed data for faster retrieval
Virtual Private Network
Simple Mail Transfer Protocol
RAM
Cache memory
Solid State Drive
Malware
Wide Area Network
Tim Berners-Lee
To enter or display a URL
The process of starting a computer
To detect and remove malware
Hypertext Transfer Protocol
Complementary Metal-Oxide-Semiconductor
Secure Shell
Main circuit board in a computer
American Standard Code for Information Interchange
Translate domain names to IP addresses
A bit is a binary digit, a byte is 8 bits
Short-range wireless communication
Smallest unit of an image
Radio Frequency Identification
Hypertext Transfer Protocol Secure
Dynamic Host Configuration Protocol
Linus Torvalds
Uniquely identifies a device on a network
Portable Network Graphics
Processes and renders images
Malicious software
Video Graphics Array
Secure remote connections
Intermediary for requests from clients to servers
Malware disguised as legitimate software
Wireless Fidelity

Key Takeaways:

Computers rely on hardware (CPU, RAM) and software (Operating Systems, Applications) to function.
Networking terms like IP, DNS, and DHCP are essential for internet communications.
Programming languages like Python, JavaScript, and C are foundational for modern computing.
Security measures such as firewalls, antivirus software, and VPNs are vital in safeguarding computer systems.
Storage devices (HDD, SSD) store data, while RAM provides temporary data storage.
Peripheral devices like printers, monitors, and webcams interact with the computer to perform input and output tasks.
Web technologies (HTML, HTTP, HTTPS) are central to how information is transmitted over the internet.
A CPU’s Control Unit, ALU, and Cache memory play key roles in processing information.
The evolution of computing started with mechanical devices like Charles Babbage’s machines and progressed to modern, electronic systems.
The concept of cloud computing and IoT (Internet of Things) is shaping the future of computing.

Also Read: Gk computer questions and answers-2022

Computer Quiz Questions with answers-Feb 25, 2023

Computer

Gk computer questions and answers-2022

Post author By admin
Post date June 22, 2022

Gk computer questions and answers-2022

1- How many bytes are in 1 Kilobyte?

2-What is the term for purchasing and offering goods and services online?

3-What is the name of the procedure for moving files from your computer to the Internet?

4-What is the virus’ full form?

5-Does Google act as a search engine or a browser?

Gk computer questions and answers

6-What is RAM’s complete form?

7-Who is Facebook’s creator?

8-Who does all logical and mathematical operations on computers?

9- Printer is which type of device, an output or an input?

10-What electronic part did the first generation of computers use?

Gk computer questions and answers

11-Who is the “Father of the Computer”?

12-What are those who try to pose as someone else and ask for private information from you called?

13-What is the procedure for transfer of files from the Internet to your computer known as?

14-Who was the person who designed the first mechanical calculator?

15-Are examples of output devices or input devices? A keyboard, mouse, and joystick

Gk computer questions and answers

16- The contents of the Cache and Main Memory will be lost when the power is turned off because?

17-Who was the Ms-Dos operating system’s programmer?

18-The first programme that executes on a computer when computer boots up is?

19-Who was the Oracle Corporation’s original founder?

20-What is the procedure for locating errors in software code called?

21 Which technology does a CD-ROM drive employ?

Gk computer questions and answers

22-What is the name of the programme that enables us to view web pages?

23-What is the name of the software that converts high-level language into machine-level language?
24-What is the name of the address assigned to a machine linked to a network?

25- What provides explicit guidelines and terminology that describe an algorithm’s logical steps?

Gk computer questions and answers

ANSWERS-

1-1024 bytes.

2-E-Commerce.

3-Uploading.

4-Virtual Information Resource Under Seize.

5-Search Engine.

6-Random Access Memory.

7-Mark Zuckerberg

8-Central Processing Unit.

9-Output device.

10-Vaccum tubes.

11-Charles Babbage.

12-Phising scams.

13-Downloading.

14-Blaise Pascal.

15-Input Devices.

16-They are volatile.

17-Bill Gates

18-Operating System.

19-Lawrence J. Ellison.

20-Debugging.

21-Optical.

22-Browser.

23-Compiler.

24-IP address.

25- Syntax.

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Computer

Computer One-Liners for various competitive examinations

Post author By admin
Post date September 27, 2018
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Computer One-Liners for various competitive examinations

Thank You for landing the Computer section page.

Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1- Central Processing Unit is the heart of the computer and this is where all the computing is done.

2-The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called Instructions.

3-Allocation of resources in a time-dependent manner to several programs simultaneously called Timesharing.

4-The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. This is called as Microprocessor.

5- External command in DOS are Edit, sys, chkdsk.

6-Personal computers can be connected together to form a Network.

7-The operating system is the most common type of System software.

8-One byte is equivalent to 8 bit.

9- RESTORE command is used to restore files from disks made using the BACKUP command.

10-Hacker is a person who uses his expertise to gain access to other people’s computers to get information illegally or to cause damage.

11-Generally, in any computer system the DATE is entered in the form of MM-DD-YY.

12-In MS-DOS you can use the small or capital letter of a combination of both to enter a command but internally MS-DOS work with Capital letter.

13- 1024 bytes equals 1 KB.

14-All computers execute Machine language program.

15-Data that are accumulated and processed in a group called Batch Processing.

16-Disk copy command in DOS is used to Copy contents of one floppy disk to another.

17-SYS command is used to Copy DOS system files to new disk.

18-The process of transferring files from a computer on the Internet to your computer is called Downloading.

19-Maximum length of DOS command using an optional parameter is 127 characters.

20-The difference between people with access to computers and the Internet and those without this access is known as the Digital Divide.

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Computer

Computer One-Liners for various competitive examinations

Post author By admin
Post date September 18, 2018
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Computer One-Liners for various competitive examinations

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Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

Follow Windows logo key keyboard shortcuts

Press The Keys Below To See The result As below

Windows logo key +D- Display the desktop
Windows logo key- Open or close the Start menu.
Windows logo key +Shift+M- Restore minimized windows to the desktop.
Windows logo key +Pause- Display the System Properties dialog box.
Windows logo key +M- Minimize all windows.
Ctrl+Windows logo key +F- Search for computers (if you’re on a network).
Windows logo key +E- Open Computer.
Windows logo key +F- Search for a file or folder.
Windows logo key +L- Lock your computer or switch users.
Windows logo key +R- Open the Run dialog box.
Windows logo key +T- Cycle through programs on the taskbar.
Windows logo key +Spacebar- Preview the desktop.
Windows logo key +Left Arrow- Maximize the window to the left side of the screen.
Windows logo key +Up- Arrow Maximize the window.
Windows logo key +Right Arrow- Maximize the window to the right side of the screen.
Windows logo key +Down Arrow- Minimizes the window.
Windows logo key +Shift+Up Arrow- Stretch the window to the top and bottom of the screen.
Windows logo key +Home- Minimize all but the active window.
Windows logo key +G- Cycle through gadgets.
Windows logo key +P- Choose a presentation display mode.
Windows logo key +X- Open Windows Mobility Center.
Windows logo key +U- Open Ease of Access Center.
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Computer

Computer One-Liners for various competitive examinations

Post author By admin
Post date March 27, 2018
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Computer One-Liners for various competitive examinations

Thank You for landing the Computer section page.

Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1-NAT stands for Network Address Translator.

2-Due to the growth of the internet and the predicted depletion of available addresses, a new version of IP version 6 using 128 BITS for the address was developed in 1995.

3-32 Bit system was known as Internet protocol version 4 which is still in use today.

4-An internet protocol address (IP address) is a numerical label assigned to each device (e.g. computer, printer) participating in a computer network.

5-TCP stands for Transmission Control Protocol.

6-License is still required to use cryptography in which among the following countries Iran and China.

7-When the information is reverted back to a useful form it is called Decryption.

8-When information is transformed from a useful form of understanding to an opaque form of understanding, this is called Encryption.

9-Cryptography is the study of information on Hiding and Verification.

10-Cryptography is derived from the Greek word.

11- Plugins and extensions are software that extends or modifies the functionality of another piece of software and require that software is used in order to function.

12-The term Software refers to the set of Electronic Program Instructions or data a computer processor reads in order to perform a task or operation.

13-Hacking is an illegal intrusion into a computer system and/or network.

14-CVE stands for Common Vulnerabilities Exposures.

15-Polymorphic Code was the first technique that posed a serious threat to virus scanners.

16-If you want to ‘Go to previous presentation window’ you will press Ctrl + Shift + F6.

17-For ‘Maximize presentation window’ you have to press Ctrl + F10.

18-Entrance, emphasis, and exit of elements on a slide itself are controlled PowerPoint calls Custom Animations.

19-MS PowerPoint was officially launched on May 22. 1990.

20-Microsoft PowerPoint is a Slide Show Presentation program.

21-The toolbar which contains shortcuts to some of the most frequently used commands found under the FORMAT menu item is Formatting Toolbar.

22-RTF stands for Rich Text Format.

23-Microsoft Word was first released in 1983.

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Computer

Computer One-Liners for various competitive examinations

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Post date March 22, 2018
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Computer One-Liners for various competitive examinations

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Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1- Full form of DOS– Disk Operating System

2- Slides prepared in MS PowerPoint.

3- Full form of DBMS– Data Base Management System

4- We can detect spelling and grammar error by- Press F7

5- Shortcut Key for Find and Replace dialog box is- Ctrl + H

6- Shortcut Key for insert hyperlink in document is- Ctrl + K

7-Shortcut key for Subscript is Ctrl + =

8- Shortcut Key for Superscript is Ctrl + Shift + =

9- Shortcut Key for font dialog box is Ctrl + D

10- To print the power point presentation, press Ctrl + P.

11- Router device connects LAN to the Internet.

12- SIM means Subscriber Identity Module.

13-Ctrl + S is for -To Save

14-COBOL is Common Business Oriented Language.

15- The Full form of COMPUTER is- Commonly Operated Machine Particularly Used for Technology Education and Research.

16- SAN refers to- Storage Area Network

17= URL is Uniform Resource Locator

18- The Full form of IP– Internet Protocol

19- The Full form of WWW– World Wide Web

20-RDBMS means- Relational Data Base Management System

21-Open, Print and Save display in Standard Tool Bar.

22-OLE stands for Object Linking and Embedding.

23-DOS file names are restricted to 8 Characters.

24-Classic OOP – Object Oriented programming can be traced back to a language called Simula and in particular Simula 67, which was popular during the 1960s.

25- OOP was practised in the 1980s.

26-DIP stands for Dependency Inversion Principle.

27- Single Binary Digit is Bit.

28-DSL stands for Digital Subscriber Line.

29-The part of a computer which is used for calculating and comparing is ALU.

30- Process of copying software programs from secondary storage media to the hard disk is called Installation.

31- When in use, software is temporarily stored in RAM.

32-Errors in a software program are referred to as Bugs.

33- Pixels are Dots on the screen arranged in rows.

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Computer

Computer One-Liners for various competitive examinations

Post author By admin
Post date February 9, 2018
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Computer One-Liners for various competitive examinations

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Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1-A series of instructions that tells a computer what to do and how to do it is called a program.

2-The rectangular area of the screen that displays a program, data, and or information is a window.

3- Disk drive is the part of the computer helps to store information.

4- An error is known as a bug.

5-A collection of related information sorted and dealt with as a unit is a file.

6-Edit the menu is selected to cut, copy and paste.

7-A syntax contains specific rules and words that express the logical steps of an algorithm.

8-Virtual memory is a memory on the hard disk that the CPU uses as an extended RAM.

9-To move to the beginning of a line of text, press the home key.

10-Microcomputer hardware consists of three basic categories of physical equipment system unit, input/output, memory.

11-A tool-bar contains buttons and menus that provide quick access to commonly used commands.

12-A programming language contains specific rules and words that express the logical steps of an algorithm.

13- A computer checks the database of username and passwords for a match before granting access.

14-Storage is the process of copying software programs from secondary storage media to the hard disk.

15-The first computers were programmed using assembly language.

16-Booting process checks to ensure the components of the computer are operating and connected properly.

17- A Special effect used to introduce slides in a presentation is called animation.

18-In any window, the maximize button, the minimize button and the close buttons appear on the title bar.

19-To take information from one source and bring it to your computer is referred to as download.

20-Spam is the other name for unsolicited e-mail.

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Introduction

Conclusion

Disclaimer

Introduction

Conclusion

Disclaimer

Basic Computer MCQs with Answers and Explanations (1-100)

Basic Computer MCQs (36-100) with Answers and Explanations

Basic Computer MCQs (106-200) with Answers and Explanations

Answers to Computer GK Questions (One-Liners)

Key Takeaways:

Gk computer questions and answers-2022

Gk computer questions and answers

Gk computer questions and answers

Gk computer questions and answers

Gk computer questions and answers

Gk computer questions and answers

Computer One-Liners for various competitive examinations

Thank You for landing the Computer section page.

Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1- Central Processing Unit is the heart of the computer and this is where all the computing is done.

2-The steps and tasks needed to process data, such as responses to questions or clicking an icon, are called Instructions.

3-Allocation of resources in a time-dependent manner to several programs simultaneously called Timesharing.

4-The ALU and control unit of most of the microcomputers are combined and manufacture on a single silicon chip. This is called as Microprocessor.

5- External command in DOS are Edit, sys, chkdsk.

6-Personal computers can be connected together to form a Network.

7-The operating system is the most common type of System software.

8-One byte is equivalent to 8 bit.

9- RESTORE command is used to restore files from disks made using the BACKUP command.

10-Hacker is a person who uses his expertise to gain access to other people’s computers to get information illegally or to cause damage.

11-Generally, in any computer system the DATE is entered in the form of MM-DD-YY.

12-In MS-DOS you can use the small or capital letter of a combination of both to enter a command but internally MS-DOS work with Capital letter.

13- 1024 bytes equals 1 KB.

14-All computers execute Machine language program.

15-Data that are accumulated and processed in a group called Batch Processing.

16-Disk copy command in DOS is used to Copy contents of one floppy disk to another.

17-SYS command is used to Copy DOS system files to new disk.

18-The process of transferring files from a computer on the Internet to your computer is called Downloading.

19-Maximum length of DOS command using an optional parameter is 127 characters.

20-The difference between people with access to computers and the Internet and those without this access is known as the Digital Divide.

Watch more Computer here

Watch Current Affairs section for here

Computer One-Liners for various competitive examinations

Thank You for landing the Computer section page.

Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

Follow Windows logo key keyboard shortcuts

Press The Keys Below To See The result As below

Windows logo key +D- Display the desktop

Windows logo key- Open or close the Start menu.

Windows logo key +Shift+M- Restore minimized windows to the desktop.

Windows logo key +Pause- Display the System Properties dialog box.

Windows logo key +M- Minimize all windows.

Ctrl+Windows logo key +F- Search for computers (if you’re on a network).

Windows logo key +E- Open Computer.

Windows logo key +F- Search for a file or folder.

Windows logo key +L- Lock your computer or switch users.

Windows logo key +R- Open the Run dialog box.

Windows logo key +T- Cycle through programs on the taskbar.

Windows logo key +Spacebar- Preview the desktop.

Windows logo key +Left Arrow- Maximize the window to the left side of the screen.

Windows logo key +Up- Arrow Maximize the window.

Windows logo key +Right Arrow- Maximize the window to the right side of the screen.

Windows logo key +Down Arrow- Minimizes the window.

Windows logo key +Shift+Up Arrow- Stretch the window to the top and bottom of the screen.

Windows logo key +Home- Minimize all but the active window.

Windows logo key +G- Cycle through gadgets.

Windows logo key +P- Choose a presentation display mode.

Windows logo key +X- Open Windows Mobility Center.

Windows logo key +U- Open Ease of Access Center.

Watch more Computer here

Watch Current Affairs section for here

Computer One-Liners for various competitive examinations

Thank You for landing the Computer section page.

Here are some important Computer one-liners for students competing for various exams

Watch some of the important Computer Bits below.

1-NAT stands for Network Address Translator.

2-Due to the growth of the internet and the predicted depletion of available addresses, a new version of IP version 6 using 128 BITS for the address was developed in 1995.

3-32 Bit system was known as Internet protocol version 4 which is still in use today.