What is the typical maximum capacity limit achievable by a single standard double-layer, double-sided Blu-ray Disc (BD-ROM)? MCQ with Answer and Explanation

Question

What is the typical maximum capacity limit achievable by a single standard double-layer, double-sided Blu-ray Disc (BD-ROM)?

A. 4.7 GB

B. 50 GB

C. 25 GB

D. 100 GB

Answer: Option B

Solution (By JKSSB Mock Tests)

A standard double-layer Blu-ray disc features two data layers on a single side, yielding a total capacity of 50 GB (25 GB per layer).

This question belongs to: Computer Memory and Storage Devices

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Question #1

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Which interface protocol is specifically designed to optimize data transfer speeds for Solid State Drives directly over the PCIe lanes?

A. SCSI

B. PATA

C. NVMe

D. SATA

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Correct Answer: Option C

Explanation:
NVMe (Non-Volatile Memory Express) is an optimized, high-performance scalable host controller interface designed specifically for enterprise and client systems using PCIe SSDs.

This question belongs to: Computer Memory and Storage Devices

Question #2

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Which of the following is a characteristic of static RAM (SRAM)?

A. High density and low cost

B. Fast and expensive

C. Used as main memory in PCs

D. Requires periodic refresh

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Correct Answer: Option B

Explanation:
SRAM is fast and expensive compared to DRAM. It does not require refreshing and is used for cache memory. DRAM is used as main memory and is dense and cheaper.

This question belongs to: Computer Memory and Storage Devices