Memory Management Questions

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101.

The technique in which the CPU generates physical addresses directly is known as ____________

A

relocation register method

B

real addressing

C

virtual addressing

D

none of the mentioned

Correct Answer: B

None.

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102.

Because of virtual memory, the memory can be shared among ____________

A

processes

B

threads

C

instructions

D

none of the mentioned

Correct Answer: A

None.

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103.

_____ is the concept in which a process is copied into the main memory from the secondary memory according to the requirement.

A

Paging

B

Demand paging

C

Segmentation

D

Swapping

Correct Answer: B

None.

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104.

The pager concerns with the ____________

A

individual page of a process

B

entire process

C

entire thread

D

first page of a process

Correct Answer: A

None.

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105.

Swap space exists in ____________

A

primary memory

B

secondary memory

C

cpu

D

none of the mentioned

Correct Answer: B

None.

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106.

When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ____________

A

segmentation fault occurs

B

fatal error occurs

C

page fault occurs

D

no error occurs

Correct Answer: C

None.

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107.

Effective access time is directly proportional to ____________

A

page-fault rate

B

hit ratio

C

memory access time

D

none of the mentioned

Correct Answer: A

None.

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108.

In FIFO page replacement algorithm, when a page must be replaced ____________

A

oldest page is chosen

B

newest page is chosen

C

random page is chosen

D

none of the mentioned

Correct Answer: A

None.

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109.

Which algorithm chooses the page that has not been used for the longest period of time whenever the page required to be replaced?

A

first in first out algorithm

B

additional reference bit algorithm

C

least recently used algorithm

D

counting based page replacement algorithm

Correct Answer: C

None.

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110.

A process is thrashing if ____________

A

it is spending more time paging than executing

B

it is spending less time paging than executing

C

page fault occurs

D

swapping can not take place

Correct Answer: A

None.

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