Which of the following is a type of optical disc that is rewritable? MCQ with Answer and Explanation

Explanation:
SSDs have no moving parts and use flash memory, providing much faster read/write speeds and lower latency compared to HDDs, which rely on spinning platters and mechanical heads.

Explanation:
CD-R (Recordable) can be written once and read many times. CD-RW is rewritable, and CD-ROM is read-only. DVD-RAM is a rewritable optical disc.

Explanation:
In the memory hierarchy, the fastest options (registers, cache) are small and expensive, while large capacity options (HDDs, SSDs) are farther from the CPU and have slower access speeds.