Q.1 Which of the following is the brain of a computer?
RAM
CPU
Hard Disk
GPU
Explanation - The CPU (Central Processing Unit) is considered the brain of the computer because it performs all the processing of data and instructions.
Correct answer is: CPU
Q.2 Which of these is a non-volatile memory?
RAM
Cache
ROM
Registers
Explanation - ROM (Read-Only Memory) is non-volatile, meaning it retains data even when the power is off, unlike RAM which is volatile.
Correct answer is: ROM
Q.3 What does URL stand for in computing?
Uniform Resource Locator
Universal Resource Link
Unified Reference Locator
Uniform Reference Link
Explanation - URL stands for Uniform Resource Locator and is the address used to access resources on the internet.
Correct answer is: Uniform Resource Locator
Q.4 Which protocol is used to send email over the Internet?
HTTP
FTP
SMTP
IMAP
Explanation - SMTP (Simple Mail Transfer Protocol) is used to send emails, while IMAP and POP3 are used to receive emails.
Correct answer is: SMTP
Q.5 What is the main function of an operating system?
Compiling code
Managing hardware and software resources
Providing internet connection
Running antivirus
Explanation - An operating system manages a computer's hardware and software resources, providing services for programs to run efficiently.
Correct answer is: Managing hardware and software resources
Q.6 Which of the following is a type of database?
MySQL
HTML
CSS
JavaScript
Explanation - MySQL is a relational database management system used to store and manage data.
Correct answer is: MySQL
Q.7 Which device converts digital signals to analog signals?
Router
Modem
Switch
Hub
Explanation - A modem modulates digital signals into analog signals for transmission over telephone lines and demodulates incoming analog signals back into digital form.
Correct answer is: Modem
Q.8 Which programming language is primarily used for web development?
C++
Java
HTML
Python
Explanation - HTML (HyperText Markup Language) is the standard language used to create and design web pages.
Correct answer is: HTML
Q.9 What does IP address stand for?
Internet Protocol Address
Internal Process Address
Internet Port Address
Internal Protocol Access
Explanation - An IP address uniquely identifies a device on a network using the Internet Protocol.
Correct answer is: Internet Protocol Address
Q.10 Which one of the following is a cloud storage service?
Google Drive
Mozilla Firefox
Windows Defender
Adobe Photoshop
Explanation - Google Drive is a cloud storage service that allows users to store and share files over the internet.
Correct answer is: Google Drive
Q.11 Which of the following is an example of open-source software?
Windows OS
Linux OS
Adobe Illustrator
Oracle DB
Explanation - Linux is an open-source operating system, meaning its source code is freely available to anyone to use or modify.
Correct answer is: Linux OS
Q.12 What does 'DNS' stand for in networking?
Domain Name System
Data Network Service
Digital Name Server
Distributed Network Security
Explanation - DNS translates human-readable domain names into IP addresses, allowing devices to locate resources on the internet.
Correct answer is: Domain Name System
Q.13 Which of the following is a computer input device?
Monitor
Keyboard
Printer
Speaker
Explanation - A keyboard is an input device used to enter data and commands into a computer.
Correct answer is: Keyboard
Q.14 Which technology is used in cryptocurrency transactions?
Blockchain
Cloud Computing
Artificial Intelligence
Virtual Reality
Explanation - Blockchain is a distributed ledger technology that ensures secure and transparent cryptocurrency transactions.
Correct answer is: Blockchain
Q.15 Which of these is not a type of computer network?
LAN
WAN
MAN
PANCAKE
Explanation - LAN (Local Area Network), WAN (Wide Area Network), and MAN (Metropolitan Area Network) are all types of computer networks; PANCAKE is unrelated.
Correct answer is: PANCAKE
Q.16 Which of the following is an example of malware?
Firewall
Antivirus
Trojan Horse
VPN
Explanation - A Trojan Horse is malicious software that appears legitimate but can harm the system once installed.
Correct answer is: Trojan Horse
Q.17 In cloud computing, SaaS stands for:
Software as a Service
Storage as a Service
System as a Service
Security as a Service
Explanation - SaaS (Software as a Service) allows users to access software applications over the internet without installing them locally.
Correct answer is: Software as a Service
Q.18 Which of the following is a web browser?
Google Chrome
Microsoft Word
Oracle DB
Linux
Explanation - Google Chrome is a web browser used to access and navigate websites on the internet.
Correct answer is: Google Chrome
Q.19 What is the purpose of a firewall in a computer network?
To speed up the network
To store data
To block unauthorized access
To manage IP addresses
Explanation - A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined rules to prevent unauthorized access.
Correct answer is: To block unauthorized access
Q.20 Which of these is a markup language?
C++
Python
HTML
Java
Explanation - HTML (HyperText Markup Language) is used to structure content on the web, not to perform general-purpose programming.
Correct answer is: HTML
Q.21 Which of the following is used to uniquely identify a web page?
IP Address
URL
DNS
HTTP
Explanation - A URL (Uniform Resource Locator) uniquely identifies the location of a web page on the internet.
Correct answer is: URL
Q.22 Which type of software is developed to meet the needs of multiple users and organizations?
System Software
Application Software
Enterprise Software
Utility Software
Explanation - Enterprise software is designed to support organization-wide processes and multiple users, often in large-scale businesses.
Correct answer is: Enterprise Software
Q.23 Which of the following is an example of a relational database?
MongoDB
MySQL
Redis
Cassandra
Explanation - MySQL is a relational database that stores data in structured tables with rows and columns.
Correct answer is: MySQL
Q.24 Which memory is fastest in a computer system?
RAM
Cache
ROM
Hard Disk
Explanation - Cache memory is a small, high-speed memory located close to the CPU to reduce data access time.
Correct answer is: Cache
Q.25 Which of the following is used for version control in software development?
Git
Docker
Kubernetes
Jenkins
Explanation - Git is a distributed version control system used to track changes in source code during software development.
Correct answer is: Git