MCQ Practice

Computer & IT MCQs

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At the start of the computer, the data that can retain stored information even after power is removed:

A. Volatile
B. Non-Volatile
C. Both A & B
D. Hard Drive

Explanation:
Non-volatile memory (ROM, hard disk) retains data without power.

Which is a volatile memory?

A. ROM
B. BIOS
C. PROM
D. RAM

Explanation:
RAM loses its data when power is turned off (volatile).

RAM is also known as . .

A. Read-Only Memory
B. Read-Write Memory
C. Programmable Read-Only Memory
D. None of these

Explanation:
RAM is read-write memory (volatile).

What does RAM in a computer stand for?

A. Read and Memorize
B. Random Access Memory
C. Random Access Module
D. Erasable Programmable Read-Only Memory

Explanation:
RAM stands for Random Access Memory.

Where is RAM located?

A. Motherboard
B. External drive
C. Expansion board
D. None of these

Explanation:
RAM modules are installed directly on the motherboard.

Another term for main memory is ____.

A. RAM
B. Cache
C. Hard Disk
D. None of these

Explanation:
Main memory is commonly called RAM.

The primary function of a register in CPU is ____.

A. To store data temporarily
B. To process instructions
C. To store program instructions
D. To store files

Explanation:
Registers temporarily hold data and instructions during processing.

A small high-speed memory inside CPU is ____.

A. Register
B. RAM
C. Cache
D. ROM

Explanation:
Registers are the fastest and smallest storage inside the CPU.

The ability to read or write each piece of information in a storage device in approximately the same length of time regardless of its location is ____.

A. Sequential Access
B. Random Access
C. Raster Scan
D. Search

Explanation:
Random Access Memory (RAM) allows equal access time to any location.

When does the following hold data and the processing instructions temporarily until the CPU needs it?

A. ROM
B. Control Unit
C. Main memory
D. None of these

Explanation:
Main memory (RAM) temporarily holds data and instructions for the CPU.

Practice Important Questions

This section provides important MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams.

Improve Conceptual Understanding

Each MCQ is designed to strengthen your understanding of key concepts and improve analytical thinking required in exams.

Exam-Oriented Preparation

These MCQs follow actual exam patterns, helping aspirants practice relevant questions and improve performance.

Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, and other competitive exams, improving accuracy and confidence.