How many bits are there in a single byte of data? MCQ with Answer and Explanation

Question

Share Report Error

How many bits are there in a single byte of data?

A. 4 bits

B. 8 bits

C. 32 bits

D. 16 bits

Answer: Option B

Solution (By JKSSB Mock Tests)

By universal definition in computer architecture, one byte is comprised of exactly eight bits.

This question belongs to: Computer Memory and Storage Devices

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Memory and Storage Devices Questions

Question #1

What is the function of the spindle motor in a hard disk?

A. To control the read/write head

B. To move the actuator arm

C. To hold the disk in place

D. To rotate the platters

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option D

Explanation:
The spindle motor rotates the platters at a constant speed (e.g., 5400 or 7200 RPM), allowing the read/write heads to access data on the rotating surface.

This question belongs to: Computer Memory and Storage Devices

Question #2

What is the storage capacity of a standard single-layer Blu-ray Disc?

A. 4.7 GB

B. 25 GB

C. 8.5 GB

D. 50 GB

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option B

Explanation:
A standard single-layer Blu-ray disc can hold up to 25 GB of data, whereas dual-layer versions can store up to 50 GB.

This question belongs to: Computer Memory and Storage Devices

Question #3

Which of the following is a type of memory that is used for the CPU's Level 2 (L2) cache?

A. Flash

B. DRAM

C. SRAM

D. SDRAM

View Answer & Solution Discuss

Get Complete Subject PDF for Computer

Correct Answer: Option C

Explanation:
L2 cache is also built with SRAM for speed, though it may be larger and slightly slower than L1.

This question belongs to: Computer Memory and Storage Devices

Explore All Memory and Storage Devices MCQs