Question

What is the unit of transfer data from main memory to cache memory?

• A. Page
• B. Block
• C. Word
• D. Byte

Hint:

Cache memory operates on blocks — smallest units transferred between memory and cache.

Answer 1

The Correct Option is B

In cache memory operations, data is transferred between main memory and cache in blocks (also called cache lines), not words or bytes. A block is the smallest unit of data for such transfer.