CCC Practice Set-4

1. What does "CPU" stand for? 

a) Central Program Unit

b) Central Processing Unit

c) Computer Personal Unit

d) Central Peripheral Unit

Correct Answer: b)
Explanation: CPU stands for Central Processing Unit and is often referred to as the brain of the computer.

2. Which component is responsible for executing instructions in a computer? 

a) RAM

b) ROM

c) CPU

d) SSD

Correct Answer: c)
Explanation: The CPU executes program instructions and performs calculations and data handling.

3. Which device is used to connect a computer to a network? 

a) Scanner

b) Printer

c) Router

d) Mouse

Correct Answer: c)
Explanation: A router connects multiple devices to the internet or a local network.

4. Which file extension is used for a JavaScript file? 

a) .js

b) .java

c) .html

d) .css

Correct Answer: a)
Explanation: JavaScript files have the `.js` extension and are used for adding dynamic behavior to web pages.

5. Who is known as the founder of Microsoft? 

a) Steve Jobs

b) Elon Musk

c) Bill Gates

d) Mark Zuckerberg

Correct Answer: c)
Explanation: Bill Gates co-founded Microsoft with Paul Allen in 1975.

6. What does RAM stand for? 

a) Read Access Memory

b) Random Access Memory

c) Rapid Access Module

d) Readily Available Memory

Correct Answer: b)
Explanation: RAM stands for Random Access Memory, a temporary memory for running processes.

7. What is the main function of an operating system? 

a) To increase battery life

b) To manage system resources and software

c) To run antivirus programs

d) To display ads

Correct Answer: b)
Explanation: The OS manages all hardware and software on a computer and coordinates tasks.

8. Which of the following is not a web browser? 

a) Google Chrome

b) Mozilla Firefox

c) Microsoft Word

d) Safari

Correct Answer: c)
Explanation: Microsoft Word is a word processing application, not a web browser.

9. Which language is used to style web pages? 

a) HTML

b) CSS

c) Java

d) SQL

Correct Answer: b)
Explanation: CSS (Cascading Style Sheets) is used to design and style HTML elements.

10. Which of the following is an input device? 

a) Monitor

b) Speaker

c) Keyboard

d) Printer

Correct Answer: c)
Explanation: A keyboard is used to input data into a computer system.

11. Which technology is used in Pen Drives? 

a) Magnetic

b) Optical

c) Flash

d) Laser

Correct Answer: c)
Explanation: Pen drives use flash memory technology to store data.

12. Which key combination is used to paste text? 

a) Ctrl + V

b) Ctrl + C

c) Ctrl + X

d) Ctrl + Z

Correct Answer: a)
Explanation: Ctrl + V is the standard shortcut for pasting copied content.

13. Which app is commonly used for spreadsheets? 

a) MS Word

b) MS Excel

c) MS Paint

d) Notepad

Correct Answer: b)
Explanation: Microsoft Excel is widely used for creating and editing spreadsheets.

14. What does LAN stand for? 

a) Local Access Network

b) Long Area Network

c) Local Area Network

d) Linked Area Network

Correct Answer: c)
Explanation: LAN is a network that connects computers within a limited area like a home or office.

15. In programming, what does "loop" mean? 

a) Repeating a set of instructions

b) Stopping execution

c) Drawing shapes

d) Printing a document

Correct Answer: a)
Explanation: A loop allows code to repeat until a condition is met.

16. What type of device is a printer? 

a) Input device

b) Output device

c) Storage device

d) Processing device

Correct Answer: b)
Explanation: Printers output information by producing physical copies of documents.

17. What does GUI stand for? 

a) General User Interface

b) Graphical User Interface

c) Graphical Utility Interface

d) General Utility Interface

Correct Answer: b)
Explanation: GUI allows users to interact with computers using graphics rather than command lines.

18. What is a URL? 

a) A type of virus

b) An email service

c) The address of a web page

d) A programming language

Correct Answer: c)
Explanation: URL (Uniform Resource Locator) is the web address used to access websites.

19. Who is the inventor of Linux? 

a) Richard Stallman

b) Tim Berners-Lee

c) Linus Torvalds

d) Steve Wozniak

Correct Answer: c)
Explanation: Linus Torvalds created the Linux kernel in 1991.

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