What type of flash memory chip structure stacks memory cells vertically to achieve much higher storage capacities within the same physical footprint? MCQ with Answer and Explanation
What type of flash memory chip structure stacks memory cells vertically to achieve much higher storage capacities within the same physical footprint?
A. Planar NAND
B. NOR Flash
C. SRAM Array
D. 3D NAND
Answer: Option D
Solution (By JKSSB Mock Tests)
3D NAND technology stacks flash memory cells vertically in multiple layers, allowing manufacturers to achieve massive storage densities on a single silicon die.
Explanation:
5400 RPM HDDs typically have sustained transfer rates around 50-100 MB/s, but 5400 RPM drives are slower than 7200 RPM, often around 50-80 MB/s. However, modern drives may reach 100+ MB/s. For exam, 50-100 MB/s is typical.
Explanation:
DDR4 common CAS latencies are around 14-16, though higher speeds may have CL18-22. DDR3 had CL9-11. DDR5 is higher (CL30+). So A is correct for typical DDR4.
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