Which memory technology is typically used for cache memory? MCQ with Answer and Explanation

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Which memory technology is typically used for cache memory?

A. Flash

B. DRAM

C. SRAM

D. SDRAM

Answer: Option C

Solution (By JKSSB Mock Tests)

Cache memory is built using SRAM (Static RAM) because it is faster and does not need refreshing, though it is more expensive per bit than DRAM.

This question belongs to: Computer Memory and Storage Devices

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Question #1

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

A. 100 GB

B. 50 GB

C. 4.7 GB

D. 25 GB

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Correct Answer: Option B

Explanation:
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

Question #2

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Which ROM type can be completely erased by exposing its internal semiconductor die to strong ultraviolet (UV) light waves?

A. EPROM

B. Flash ROM

C. PROM

D. EEPROM

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Correct Answer: Option A

Explanation:
EPROM (Erasable Programmable Read-Only Memory) chips feature a distinctive transparent quartz window over the die through which ultraviolet light is applied to erase data.

This question belongs to: Computer Memory and Storage Devices

Question #3

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Which of the following storage devices is most suitable for portable data transfer?

A. Hard disk

B. USB flash drive (pen drive)

C. SSD

D. Blu-ray disc

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Correct Answer: Option B

Explanation:
USB flash drives are compact, durable, and easy to carry, making them ideal for portable data transfer. They offer good capacity and speed for everyday use.

This question belongs to: Computer Memory and Storage Devices

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