What is the primary advantage of using DDR4 over DDR3 RAM? MCQ with Answer and Explanation

What is the primary advantage of using DDR4 over DDR3 RAM?
A. Higher data rates and lower power consumption
B. Higher operating voltage
C. Larger physical size
D. Lower data transfer rates
Answer: Option A
Solution (By JKSSB Mock Tests)
DDR4 offers higher data rates (up to 3200 MT/s and beyond) and lower operating voltage (1.2V vs 1.5V for DDR3), leading to improved performance and efficiency.

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Practice More Memory and Storage Devices Questions

Question #1
What is the maximum capacity of a standard CD-RW disc?
A. 800 MB
B. 700 MB
C. 650 MB
D. 1 GB

Correct Answer: Option B


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
What is the function of the 'system clock' in relation to memory?
A. It determines the memory capacity
B. It measures the amount of memory used
C. It controls the timing of data transfer between CPU and memory
D. It allocates memory to processes

Correct Answer: Option C


Explanation:
The system clock provides a timing signal that synchronizes the operations of the CPU, memory, and other components, coordinating data transfers.

This question belongs to: Computer Memory and Storage Devices
Question #3
Which statement is true regarding Solid State Drives (SSDs) compared to Hard Disk Drives (HDDs)?
A. SSDs are less resistant to physical shocks than HDDs.
B. SSDs consume more power than HDDs.
C. SSDs use flash memory and offer faster data access speeds.
D. SSDs have moving mechanical parts and are slower.

Correct Answer: Option C


Explanation:
SSDs use non-volatile flash memory, have no moving parts, and deliver significantly higher read/write speeds compared to traditional HDDs.

This question belongs to: Computer Memory and Storage Devices