COA_Ch06_InClass-2

COA_Ch06_InClass-2

University

7 Qs

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COA_Ch06_InClass-2

COA_Ch06_InClass-2

Assessment

Quiz

others

University

Practice Problem

Medium

Created by

Chun-Jung Lin

Used 27+ times

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

“Locality of reference” refers to:

data always being in cache
programs always referencing data in RAM
clustering of memory references
the requirement that forces us to use a large amount of expensive memory

2.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Cache memory is typically positioned between:

the CPU and RAM
the CPU and the hard drive
ROM and RAM
none of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

All cache mapping schemes require a main memory address to have an offset field.

True
False

4.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

The tag field of a main memory address is used to determine:

if the cache entry is valid
if the cache entry is the desired block
if the memory address is valid
none of the above

5.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Cache replacement policies are necessary:

to determine which cache mapping policy to use
to determine which block in cache should be the victim block
to decide where to put blocks when cache is empty
all of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 4 pts

Caching breaks down when programs exhibit good locality.

True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The average time required to reach a memory storage location and retrieve its contents is called:

latency

response time

hit time

effective access time

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