Operating System (3140702) MCQs

MCQs of Memory Management

Showing 21 to 30 out of 85 Questions
1 2 3 4 5 6
21.
__________ is generally faster than _________ and _________
(a) First fit, best fit, worst fit
(b) Best fit, first fit, worst fit
(c) Worst fit, best fit, first fit
(d) None of the mentioned
Answer:

Option (a)

22.
External fragmentation exists when?
(a) The total memory is insufficient to satisfy a request
(b) Enough total memory exists to satisfy a request but it is not contiguous
(c) A request cannot be satisfied even when the total memory is free
(d) None of the mentioned
Answer:

Option (b)

23.
External fragmentation will not occur when?
(a) First fit is used
(b) Best fit is used
(c) Worst fit is used
(d) No matter which algorithm is used, it will always occur
Answer:

Option (d)

24.
Physical memory is broken into fixed-sized blocks called ________
(a) frames
(b) pages
(c) sectors
(d) files
Answer:

Option (a)

25.
Logical memory is broken into blocks of the same size called _________
(a) frames
(b) pages
(c) sectors
(d) files
Answer:

Option (b)

26.
Every address generated by the CPU is divided into two parts. They are ____________
(a) frame bit & page number
(b) page number & page offset
(c) page offset & frame bit
(d) frame offset & page offset
Answer:

Option (b)

27.
The __________ is used as an index into the page table.
(a) frame bit
(b) page number
(c) page offset
(d) frame offset
Answer:

Option (b)

28.
The _____ table contains the base address of each page in physical memory.
(a) process
(b) memory
(c) page
(d) frame
Answer:

Option (c)

29.
With paging there is no ________ fragmentation.
(a) internal
(b) external
(c) either type of
(d) None of the mentioned
Answer:

Option (b)

30.
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)

Showing 21 to 30 out of 85 Questions
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