What is the typical capacity of a single-layer BD-R (Blu-ray recordable) disc? MCQ with Answer and Explanation

What is the typical capacity of a single-layer BD-R (Blu-ray recordable) disc?
A. 25 GB
B. 50 GB
C. 128 GB
D. 4.7 GB
Answer: Option A
Solution (By JKSSB Mock Tests)
Single-layer BD-R holds 25 GB, dual-layer 50 GB, and triple-layer 100 GB or more. Standard Blu-ray is 25 GB.

Discuss this Question (0)

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

Practice More Memory and Storage Devices Questions

Question #1
Which memory management scheme maps logical address space onto physical storage blocks called pages and frames?
A. Paging
B. Cache Mapping
C. Virtual Memory
D. Fragmentation

Correct Answer: Option A


Explanation:
Paging is a memory management scheme that eliminates the need for contiguous allocation of physical memory by dividing physical memory into frames and logical memory into pages.

This question belongs to: Computer Memory and Storage Devices
Question #2
What is the maximum theoretical data rate of USB 3.0?
A. 10 Gbps
B. 5 Gbps
C. 20 Gbps
D. 480 Mbps

Correct Answer: Option B


Explanation:
USB 3.0 (SuperSpeed) has a maximum theoretical data rate of 5 Gbps. USB 2.0 is 480 Mbps, USB 3.1 is 10 Gbps, and USB 3.2 can be 20 Gbps.

This question belongs to: Computer Memory and Storage Devices
Question #3
What is the typical power consumption of a 3.5-inch hard disk drive?
A. About 20-30 watts
B. About 1-2 watts
C. About 50 watts
D. About 5-10 watts

Correct Answer: Option D


Explanation:
A typical 3.5-inch HDD consumes around 5 to 10 watts during operation, while 2.5-inch drives use less (2-3 watts). SSDs consume even less.

This question belongs to: Computer Memory and Storage Devices