Which interface protocol is specifically designed to optimize data transfer speeds for Solid State Drives directly over the PCIe lanes? MCQ with Answer and Explanation
Which interface protocol is specifically designed to optimize data transfer speeds for Solid State Drives directly over the PCIe lanes?
A. SCSI
B. SATA
C. PATA
D. NVMe
Answer: Option D
Solution (By JKSSB Mock Tests)
NVMe (Non-Volatile Memory Express) is an optimized, high-performance scalable host controller interface designed specifically for enterprise and client systems using PCIe SSDs.
Explanation:
The memory hierarchy from fastest to slowest is typically: Registers (fastest), then Cache, then RAM (main memory), then secondary storage like Hard disk (slowest).
Explanation:
A buffer (or disk cache) in a hard disk is a small amount of RAM used to temporarily hold data being read from or written to the disk, improving performance by reducing access time.
Explanation:
Magnetic tape drives use sequential access mechanics, meaning they must physically wind through a tape spool to reach specific data, making random access extremely slow.
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