Top 100 Important Computer Mcqs Set-11 Page 3

Top 100 Important Computer Mcqs Set-11

41- To copy a picture of the screen to the clipboard, use which command?

A. Print screen

B. Alt+Print screen

C. Ctrl+Print screen

D. Shift+Print screen

View Answer

Answer : A. Print screen

Description

42- Which shortcut keys are used to switch to the next windows?

A. Ctrl + Tab

B. Alt + Tab

C. Shift + Tab

D. Windows + Tab

View Answer

Answer : B. Alt + Tab

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43- A picture resized by a percentage is described as?

A. Flipped

B. Rotated

C. Scaled

D. Cropped

View Answer

Answer : C. Scaled

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44- What is the full form of BIOS?

A. Basic Input Output Software

B. Binary Input Output System

C. Basic Integrated Output System

D. Basic Input Output System

View Answer

Answer : D. Basic Input Output System

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45- Which protocol is used to send emails?

A. TCP

B. FTP

C. HTTP

D. SMTP

View Answer

Answer : D. SMTP

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46- What is the default port number for HTTP?

A. 21

B. 25

C. 80

D. 443

View Answer

Answer : C. 80

Description

47- Which of the following is a non-volatile memory?

A. ROM

B. RAM

C. Cache

D. Register

View Answer

Answer : A. ROM

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48- What does LAN stand for?

A. Large Area Network

B. Local Area Network

C. Long Area Network

D. Logical Area Network

View Answer

Answer : B. Local Area Network

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49- Which device is used to connect different networks?

A. Switch

B. Router

C. Hub

D. Modem

View Answer

Answer : B. Router

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50- What is the maximum transmission speed of USB 3.0?

A. 480 Mbps

B. 5 Gbps

C. 10 Gbps

D. 20 Gbps

View Answer

Answer : B. 5 Gbps

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51- Which of the following is an example of system software?

A. Chrome

B. Photoshop

C. MS Word

D. Windows 10

View Answer

Answer : D. Windows 10

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52- What is the function of an ALU?

A. Controls memory

B. Manages input/output

C. Stores data

D. Performs arithmetic and logical operations

View Answer

Answer : D. Performs arithmetic and logical operations

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53- Which protocol is used for transferring files over the internet?

A. FTP

B. HTTP

C. SMTP

D. Telnet

View Answer

Answer : A. FTP

Description

54- How many bytes are in a kilobyte?

A. 512

B. 1000

C. 1024

D. 2048

View Answer

Answer : C. 1024

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55- Which of the following is not an operating system?

A. Linux

B. Windows

C. macOS

D. Oracle

View Answer

Answer : D. Oracle

Description

56- What is the function of a firewall?

A. Stores data

B. Processes data

C. Protects against unauthorized access

D. Increases internet speed

View Answer

Answer : C. Protects against unauthorized access

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57- Which of the following is a programming language?

A. HTML

B. CSS

C. JavaScript

D. XML

View Answer

Answer : C. JavaScript

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58- What is the default port for HTTPS?

A. 21

B. 25

C. 80

D. 443

View Answer

Answer : D. 443

Description

59- Which of the following is an input device?

A. Keyboard

B. Speaker

C. Printer

D. Monitor

View Answer

Answer : A. Keyboard

Description

60- What is the smallest unit of data in a computer?

A. Bit

B. Byte

C. Nibble

D. Word

View Answer

Answer : A. Bit

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