Question

In the fetch execution cycle, when the CPU accesses the cache and finds the required instructions and data for the execute step, it is termed as a:

a) Cache Miss

b) Cache Hit

c) Fetch Execution

d) Instruction Access

Answer 1

In the fetch execution cycle, a Cache Hit occurs when the CPU finds the required instructions and data in the cache, resulting in faster execution. A Cache Miss occurs when the data or instructions are not found in the cache and the CPU must access the main memory.

Step-by-step explanation:

In the fetch execution cycle, when the CPU accesses the cache and finds the required instructions and data for the execute step, it is termed as a Cache Hit. A cache hit occurs when the CPU can find the needed data or instructions in the cache, which is a smaller and faster memory closer to the CPU.

This results in faster execution of the program since the CPU does not have to fetch the data from the main memory. On the other hand, a Cache Miss occurs when the CPU cannot find the needed data or instructions in the cache, and it must access the main memory to fetch them.