Which of the following is a volatile memory type? MCQ with Answer and Explanation

Question
Which of the following is a volatile memory type?
A. ROM
B. SRAM
C. Flash memory
D. Magnetic disk
Answer: Option B
Solution (By JKSSB Mock Tests)
SRAM is volatile, meaning it loses data when power is removed. Flash, ROM, and magnetic disk are non-volatile.
This question belongs to: Computer Memory and Storage Devices
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Practice More Memory and Storage Devices Questions

Question #1
What is the function of the 'read' operation in memory?
A. To store data to a memory location
B. To clear a memory location
C. To retrieve data from a memory location
D. To move data between registers
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Correct Answer: Option C

Explanation:
A read operation fetches data from a specified memory address and transfers it to the CPU or another component.
This question belongs to: Computer Memory and Storage Devices
Question #2
What is the purpose of a memory bank in DRAM?
A. To reduce latency
B. To allow independent access to different sections of memory
C. To store multiple copies of data
D. To increase voltage
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Correct Answer: Option B

Explanation:
Memory banks in DRAM allow concurrent access to different banks, increasing parallelism and throughput.
This question belongs to: Computer Memory and Storage Devices
Question #3
Which specific optical storage standard uses a shorter wavelength blue-violet laser to read and write data, allowing for significantly higher data density?
A. Blu-ray Disc
B. Magnetic Tape
C. DVD-R
D. CD-ROM
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Correct Answer: Option A

Explanation:
Blu-ray discs use a 405nm blue-violet laser, which has a shorter wavelength than the red lasers used in DVDs and CDs, allowing it to focus on smaller pits and pack more data.
This question belongs to: Computer Memory and Storage Devices
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