Caches MCQ’s

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This set of Computer Architecture Multiple Choice Questions & Answers (MCQs) focuses on “Caches”.

1. The effectiveness of the cache memory is based on the property of ________
a) Locality of reference
b) Memory localisation
c) Memory size
d) None of the mentioned

2. The temporal aspect of the locality of reference means ________
a) That the recently executed instruction won’t be executed soon
b) That the recently executed instruction is temporarily not referenced
c) That the recently executed instruction will be executed soon again
d) None of the mentioned

3. The reason for the implementation of the cache memory is ________
a) To increase the internal memory of the system
b) The difference in speeds of operation of the processor and memory
c) To reduce the memory access and cycle time
d) All of the mentioned

4. The spatial aspect of the locality of reference means ________
a) That the recently executed instruction is executed again next
b) That the recently executed won’t be executed again
c) That the instruction executed will be executed at a later time
d) That the instruction in close proximity of the instruction executed will be executed in future

5. The algorithm to remove and place new contents into the cache is called _______
a) Replacement algorithm
b) Renewal algorithm
c) Updation
d) None of the mentioned

6. The bit used to signify that the cache location is updated is ________
a) Dirty bit
b) Update bit
c) Reference bit
d) Flag bit

7. The correspondence between the main memory blocks and those in the cache is given by _________
a) Hash function
b) Mapping function
c) Locale function
d) Assign function

8. The write-through procedure is used ________
a) To write onto the memory directly
b) To write and read from memory simultaneously
c) To write directly on the memory and the cache simultaneously
d) None of the mentioned

9. The copy-back protocol is used ________
a) To copy the contents of the memory onto the cache
b) To update the contents of the memory from the cache
c) To remove the contents of the cache and push it on to the memory
d) None of the mentioned

10. The approach where the memory contents are transferred directly to the processor from the memory is called ______
a) Read-later
b) Read-through
c) Early-start
d) None of the mentioned

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