Computer — All MCQs

4795 questions available

Showing 41–60 of 4795

Q41.An error in computer data is called:

Easy
A Bug
B Chip
C CPU
D None of these
Computer Terminology PPSC 2026

Correct Answer: A

A bug is an error or flaw in computer software or data.

Q42.Which networking protocol is used to assign IP addresses dynamically to device on a network:

Easy
A DHCP
B FTP
C HTTP
D SMPT
Computer Networks PPSC 2026

Correct Answer: A

DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to devices.

Q43.Which of the following protocol is used for the email:

Easy
A SMPT and POP
B POP and FTP
C SMPT and FTP
D None of these
Internet Services & Communication PPSC 2026

Correct Answer: A

SMTP (Simple Mail Transfer Protocol) and POP (Post Office Protocol) are used for email.

Q44.In Power Point the feature is used to display only content and hide other elements is called :

Easy
A Normal View
B Outline View
C Slide Show View
D Notes View
MS PowerPoint PPSC 2026

Correct Answer: C

Outline View in PowerPoint displays only the text content of slides.

Q45.Turing Machine is used for:

Hard
A AI
B Modeling Computation
C Problem Solving
D All of these
Computer History PPSC 2026

Correct Answer: D

Turing Machine is used for AI, modeling computation, and problem solving.

Q46.What is the effect of Data Compression :

Easy
A Increase File size
B Slow down process
C Reduce File size
D Damage size
Computer Terminology PPSC 2026

Correct Answer: C

Data compression reduces the size of files to save storage space and bandwidth.

Q47.Which of the following is not considered the characteristics of cloud computing:

Medium
A One demand Self Service
B Resourcing Pooling
C Lifting Networking Accessibility
D Rapid Elasticity
Internet & Web PPSC 2026

Correct Answer: C

Cloud computing characteristics include on-demand self-service, resource pooling, and rapid elasticity.

Q48.Which test is done to check that the new technology remains consistent with the old one:

Medium
A Regression Test
B Unit Test
C Integration Test
D Smoke Test
Computer Terminology PPSC 2026

Correct Answer: A

Regression testing ensures that new changes do not break existing functionality.

Q49.HTML is used for?

Easy
A Develop web pages
B Database
C Graphics
D OS
Computer Basics PPSC 2026

Correct Answer: A

HTML (HyperText Markup Language) is used to develop and structure web pages.

Q50.Ransom ware files are?

Easy
A Deleted
B Encrypted
C Copied
D Hidden
Computer Security PPSC 2026

Correct Answer: B

Ransomware encrypts files and demands payment for decryption.

Q51.Function of Direct Memory Access (DMA)?

Medium
A Storage data
B Delete data
C Print Data
D Allow data to CPU
Computer Basics PPSC 2026

Correct Answer: D

DMA allows data to be transferred directly between memory and CPU without processor intervention.

Q52.Multiprogramming is a?

Easy
A Operating system allows more than one program to run Concurrently
B One task
C One task
D Single user
Computer Basics PPSC 2026

Correct Answer: A

Multiprogramming allows multiple programs to reside in memory and execute concurrently.

Q53.Normalization in database through?

Medium
A Minimize data
B Delete data
C Copy data
D Increase data
Computer Terminology PPSC 2026

Correct Answer: A

Database normalization minimizes data redundancy and improves data integrity.

Q54.Which option hides email contents?

Easy
A To
B CC
C BCC
D Subject
Internet Services & Communication PPSC 2026

Correct Answer: C

BCC (Blind Carbon Copy) hides recipient email addresses from other recipients.

Q55.Inventor of C-language?

Easy
A James Gosling
B Dannis Ritchle
C Bjarne Stroustrup
D Gulde
Computer History PPSC 2026

Correct Answer: B

Dennis Ritchie invented the C programming language at Bell Labs in 1972.

Q56.Primary memory used for speed of computer?

Easy
A RAM
B HDD
C SSD
D ROM
Computer Basics PPSC 2026

Correct Answer: A

RAM (Random Access Memory) is the primary memory that directly affects computer speed.

Q57.Which of following is a classic example of a cloud storage service?

Easy
A MS Word
B Google Drive
C Excel
D Paint
Internet & Web PPSC 2026

Correct Answer: B

Google Drive is a classic example of cloud storage service.

Q58.Who was Inventor of personal computer?

Medium
A John Blankenbaker
B Bill Gates
C Alan Turing
D Steve Jobs
Computer History PPSC 2026

Correct Answer: A

John Blankenbaker is credited with inventing the first personal computer (Kenbak-1).

Q59.Which type of volatile RAM is faster?

Easy
A DRAM (Dynamic RAM)
B SRAM (Static RAM)
C EPRAM
D None of these
Computer Basics PPSC 2026

Correct Answer: B

SRAM (Static RAM) is faster than DRAM as it does not need to be refreshed.

Q60.Which is used to give IP Address to devices?

Easy
A ISP
B ICANN
C DNS
D DHCP
Computer Networks PPSC 2026

Correct Answer: D

DHCP (Dynamic Host Configuration Protocol) automatically assigns IP addresses to network devices.