Memory Management Questions

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111.

Working set model for page replacement is based on the assumption of ____________

A

modularity

B

locality

C

globalization

D

random access

Correct Answer: B

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112.

Virtual memory allows ____________

A

execution of a process that may not be completely in memory

B

a program to be smaller than the physical memory

C

a program to be larger than the secondary storage

D

execution of a process without being in physical memory

Correct Answer: A

None.

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113.

The instruction being executed, must be in ____________

A

physical memory

B

logical memory

C

physical & logical memory

D

none of the mentioned

Correct Answer: A

None.

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114.

Error handler codes, to handle unusual errors are ____________

A

almost never executed

B

executed very often

C

executed periodically

D

none of the mentioned

Correct Answer: A

None.

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115.

The ability to execute a program that is only partially in memory has benefits like ____________

A

The amount of physical memory cannot put a constraint on the program

B

Programs for an extremely large virtual space can be created

C

Throughput increases

D

All of the mentioned

Correct Answer: D

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116.

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

Correct Answer: B

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117.

Virtual memory is normally implemented by ________

A

demand paging

B

buses

C

virtualization

D

all of the mentioned

Correct Answer: A

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118.

Segment replacement algorithms are more complex than page replacement algorithms because ____________

A

Segments are better than pages

B

Pages are better than segments

C

Segments have variable sizes

D

Segments have fixed sizes

Correct Answer: C

None.

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119.

A swapper manipulates ___________ whereas the pager is concerned with individual _______ of a process.

A

the entire process, parts

B

all the pages of a process, segments

C

the entire process, pages

D

none of the mentioned

Correct Answer: C

None.

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120.

Using a pager ____________

A

increases the swap time

B

decreases the swap time

C

decreases the swap time

D

increases the amount of physical memory needed

Correct Answer: C

None.

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