Question 7781 – Computer-Organization

A certain processor uses a fully associative cache of size 16 kB. The cache block size is 16 bytes. Assume that the main memory is byte addressable and uses a 32-bit address. How many bits are required for the Tag and the Index fields respectively in the addresses generated by the processor?

Correct Answer: A

Since, it is said for fully associative cache so

No index bits is there. So, now for tag bits,
Total bits – Offset bits = 32 – 4 = 28
So, tag bits = 28, Index bits = 0