What is the maximum storage capacity of a standard dual-layer DVD? MCQ with Answer and Explanation

Question
What is the maximum storage capacity of a standard dual-layer DVD?
A. 15 GB
B. 4.7 GB
C. 8.5 GB
D. 9.4 GB
Answer: Option C
Solution (By JKSSB Mock Tests)
A dual-layer DVD (DVD-9) holds about 8.5 GB (or 7.95 GiB). Single-layer is 4.7 GB. Some double-sided DVDs have more, but standard dual-layer is 8.5 GB.
This question belongs to: Computer Memory and Storage Devices
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Question #1
What is the maximum capacity of a standard CD-RW disc?
A. 650 MB
B. 800 MB
C. 700 MB
D. 1 GB
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Correct Answer: Option C

Explanation:
A standard CD-RW has a capacity of 700 MB (80 minutes). Some older ones were 650 MB. CD-RW is rewritable.
This question belongs to: Computer Memory and Storage Devices
Question #2
Which type of cache memory is typically built directly into the processor chip itself and is the fastest among all cache layers?
A. L3 Cache
B. L1 Cache
C. L2 Cache
D. L4 Cache
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Correct Answer: Option B

Explanation:
L1 cache (Level 1) is the closest and fastest memory layer integrated directly inside the CPU core.
This question belongs to: Computer Memory and Storage Devices
Question #3
What is the typical capacity of a DVD disc used for movies?
A. 4.7 GB (single layer)
B. 8.5 GB (dual layer)
C. 25 GB
D. Both A and B
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Correct Answer: Option D

Explanation:
Commercial DVDs can be single-layer (4.7 GB) or dual-layer (8.5 GB) for longer movies. Both are used.
This question belongs to: Computer Memory and Storage Devices
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