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Q.

A program is generally composed of several different localities, which _____ overlap.

A

may

B

must

C

do not

D

must not

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MCQ

1.

In virtual memory. the programmer __________ of overlays.

A

has to take care

B

does not have to take care

C

all of the mentioned

D

none of the mentioned

Discussion

MCQ

2.

Consider the following page reference string. 1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 For FIFO page replacement algorithms with 4 frames, the number of page faults is?

A

16

B

15

C

14

D

11

Discussion

MCQ

3.

Illegal addresses are trapped using the _____ bit.

A

error

B

protection

C

valid-invalid

D

access

Discussion

MCQ

4.

What is the reason for using the MFU page replacement algorithm?

A

an actively used page should have a large reference count

B

a less used page has more chances to be used again

C

it is extremely efficient and optimal

D

all of the mentioned

Discussion

MCQ

5.

The minimum number of page frames that must be allocated to a running process in a virtual memory environment is determined by ____________

A

the instruction set architecture

B

page size

C

physical memory size

D

number of processes in memory

Discussion

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