Operating System MCQ Questions Answers Computer Engineering CSE


11) Consider an address of 16 bit, with 4 bit as segment number, then maximum possible augment size is……..

a) 16

b) 65536

c) 4096

d) 12

View Answer
Option – c)


12) The cylinder skew problem is concern with which of the following

a) Semaphore

b) Thrashing

c) Interleaving

d) Deadlock

View Answer
Option – c)


13) Determine the page faults when FIFO is applied to the following string with 3 frames 2,4,3,1,5,3,2,5,3,1,4,2

a)10

b) 12

c) 9

d) 7

View Answer
Option – c)

14) The only state transition that is initiated by the user process itself is

a) block

b) Dispatch

c) wakeup

d) none of the above

View Answer
Option – a)


15) The size of the virtual memory depends on the size of the

a) data bus

b) main memory

c) address bus

d) none of these

View Answer
Option – c)


16) Which of the following scheduling algorithms gives minimum average waiting time?

a) FCFS

b) SJF

c) Round-robin

d) Priority

View Answer
Option – b)


17) Which of the following scheduler reduces the degree of multiprogramming?

a) Long-term scheduler

b) Short-term scheduler

c) mid-term scheduler

d)none of the above

View Answer
Option – c)


18) Which of the following is the solution of priority inversion problem?

a) Kill the higher-priority process

b) Kill the lower-priority process

c) priority-inheritance protocol

d) semaphore

View Answer
Option – c)


19) Where does the swap space residable?

a) RAM

b) Disk

c) ROM

d)  on-chip cache

View Answer
Option – b)


20) When a computer is ‘’ swapping’’ it is

a) moving data from the hard drive to the floppy drive

b) moving data from memory to the swap file on the hard drive

c) moving data between registers in memory

d) none of the above

View Answer
Option – b)

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