Paging Questions

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1.

The advantage of pages in paging is

A

no logical relation with program

B

no need of entire segment of task in physical memory

C

reduction of memory requirement for task

D

all of the mentioned

Correct Answer: D

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2.

The size of the pages in the paging scheme is

A

variable

B

fixed

C

both variable and fixed

D

none

Correct Answer: B

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3.

To convert linear addresses into physical addresses, the mechanism that the paging unit uses is

A

linear conversion mechanism

B

one level table mechanism

C

physical conversion mechanism

D

two level table mechanism

Correct Answer: D

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4.

The control register that stores the 32-bit linear address, at which the previous page fault is detected is

A

CR0

B

CR1

C

CR2

D

CR3

Correct Answer: C

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5.

Which of the following is not a component of paging unit?

A

page directory

B

page descriptor base register

C

page table

D

page

Correct Answer: B

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6.

The control register that is used as page directory physical base address register is

A

CR0

B

CR1

C

CR2

D

CR3
 

Correct Answer: D

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7.

The bits of CR3, that are always zero are

A

higher 4 bits

B

lower 8 bits

C

higher 10 bits

D

lower 12 bits

Correct Answer: D

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8.

Each directory entry in page directory is maximum of

A

2 bytes

B

4 bytes

C

8 bytes

D

16 bytes

Correct Answer: B

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9.

The size of each page table is of

A

2 Kbytes

B

2 bytes

C

4 Kbytes

D

4 bytes

Correct Answer: C

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10.

The dirty bit(D) is set, before which operation is carried out

A

write

B

read

C

initialization

D

none of the mentioned

Correct Answer: A

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