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Digital Assistant 2023 PART B - 100 Marks All Topics MCQs

Paging - 1 - Operating System Questions and Answers - Memory Management

1.

The page table registers should be built with _______

   A.) very low speed logic
   B.) very high speed logic
   C.) a large memory space
   D.) none of the mentioned

Answer: Option 'B'

​very high speed logic

2.

Smaller page tables are implemented as a set of _______

   A.) registers
   B.) counters
   C.) queues
   D.) stacks

Answer: Option 'A'

​registers

3.

The operating system maintains a ______ table that keeps track of how many frames have been allocated, how many are there, and how many are available.

   A.) page
   B.) mapping
   C.) frame
   D.) memory

Answer: Option 'C'

​frame

4.

Paging increases the ______ time.

   A.) waiting
   B.) execution
   C.) context – switch
   D.) all of the mentioned

Answer: Option 'C'

context – switch

5.

With paging there is no ________ fragmentation.

   A.) internal
   B.) external
   C.) either type of
   D.) none of the mentioned

Answer: Option 'B'

external

6.

If the size of logical address space is 2 to the power of m, and a page size is 2 to the power of n addressing units, then the high order _____ bits of a logical address designate the page number, and the ____ low order bits designate the page offset.

   A.) m, n
   B.) n, m
   C.) m – n, m
   D.) m – n, n

Answer: Option 'D'

m – n, n

7.

The _____ table contains the base address of each page in physical memory.

   A.) process
   B.) memory
   C.) page
   D.) frame

Answer: Option 'C'

​page

8.

The size of a page is typically :

   A.) varied
   B.) power of 2
   C.) power of 4
   D.) none of the mentioned

Answer: Option 'B'

​power of 2

9.

Every address generated by the CPU is divided into two parts :

   A.) page number & page offset
   B.) frame bit & page number
   C.) page offset & frame bit
   D.) frame offset & page offset

Answer: Option 'A'

page number & page offset

10.

The __________ is used as an index into the page table.

   A.) page number
   B.) frame bit
   C.) page offset
   D.) frame offset

Answer: Option 'A'

​page number

11.

Physical memory is broken into fixed-sized blocks called ________

   A.) frames
   B.) pages
   C.) backing store
   D.) none of the mentioned

Answer: Option 'A'

frames

12.

Logical memory is broken into blocks of the same size called _________

   A.) frames
   B.) pages
   C.) backing store
   D.) none of the mentioned

Answer: Option 'B'

​pages


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