Cache Memory Quiz by CA-Learning

What is a block?

A section of data within cache memory.

A section of data within main memory.

A section of data within secondary memory.

A section of data within the register..

What is a line?

A section of data within cache memory.

A section of data within main memory.

A section of data within secondary memory.

A section of data within registers.

What is a cache hit?

When a word request is made

When cache mapping is successful.

When the word requested is found in cache.

When page mapping is successful.

What is a cache miss?

When a word is not found in the CPU.

When the cache word request is unsuccessful.

When a cache request is missed.

When the word requested is not found in cache.

How do you calculate the cache hit ratio?

Hit ratio = cache hits / (total cache hits + total cache misses)

Hit ratio = cache hits / cache misses

Hit ratio = cache misses / cache hits

Hit ratio = cache hits / total cache hits + cache misses

The physical address size of a block in direct mapping is the same as the cache address size.

True

False

The block size in direct mapping is equal to line size.

True

False

What is an advantage of fully associative mapping?

It is resource efficient. I.e inexpensive

It is straight forward and simple.

There are no conflicts.

It has the greatest access time.

Consider a machine with a byte addressable main memory of 2^32 bytes divided into blocks of size 32 bytes. Assume that a direct mapped cache having 512 cache lines is used with this machine. The size of the tag field in bits is ______.

18 bits

20 bits

32 bits

16 bits

Cache Memory Quiz by CA-Learning

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