Which characteristic makes Static RAM (SRAM) different from Dynamic RAM (DRAM)? MCQ with Answer and Explanation

Which characteristic makes Static RAM (SRAM) different from Dynamic RAM (DRAM)?
A. SRAM is cheaper and denser than DRAM.
B. SRAM is volatile while DRAM is non-volatile.
C. SRAM is slower than DRAM.
D. SRAM uses flip-flops to store data and does not require continuous refreshing.
Answer: Option D
Solution (By JKSSB Mock Tests)
SRAM uses flip-flops to retain data as long as power is supplied, making it faster and eliminating the need for periodic refreshing cycles unlike DRAM.

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Practice More Memory and Storage Devices Questions

Question #1
What is the function of the control unit when interacting with computer memory?
A. It permanently erases malicious software definitions from the ROM.
B. It formats empty partitions into recognizable file structures like NTFS.
C. It translates physical data sectors into optical laser frequencies.
D. It directs the flow of data and instructions between the CPU registers and memory.

Correct Answer: Option D


Explanation:
The control unit within the CPU coordinates data routing and instruction fetching operations between internal storage areas, registers, and system memory.

This question belongs to: Computer Memory and Storage Devices
Question #2
Which component of a hard disk drive is responsible for reading and writing data?
A. Read/Write head
B. Platter
C. Spindle
D. Actuator arm

Correct Answer: Option A


Explanation:
The read/write head is the component that reads data from and writes data to the platters. The actuator arm moves the head, and the spindle rotates the platters.

This question belongs to: Computer Memory and Storage Devices
Question #3
Which technology is applied in writing data onto a CD-RW disc to allow repeated overwriting?
A. Phase-change alloy material
B. Magnetic field reversal
C. Dye ablation
D. Floating gate transistor charging

Correct Answer: Option A


Explanation:
CD-RW discs use a phase-change material that can transition between crystalline (reflective) and amorphous (absorbent) states via laser heating to clear or write data.

This question belongs to: Computer Memory and Storage Devices