operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 1

With round-robin CPU scheduling in a time shared system

a) using very large time slices degenerates into First-Come First Served Algorithm

b) using extremely small time slices improves performance

c) using very small time slices degenerate into Last-In-First-Out algorithm

d) using medium sized time slices leades to Shortest Request Time First algorithm.

Question : 2

In semaphore when the order of processes that are waiting to be removed from the queue is first in first out (FIFO) then it is called

a) Weak semaphore

b) Strong semaphore

c) Binary semaphore

d) None of these.

Question : 3

With trap in process control

a) Operating system determines the error or exception condition that is fatal.

b) Operating system interrupted for maximum allowable time.

c) Are tables that manage information process

d) None of these.

Question : 4

In magnetic disk, density that is in bits per linear inch

a) Increases in moving from the outer most track to the inner most track.

b) Decreases in moving from the outer most track to the inner most track.

c) Remains same in moving from the outer most track to the inner most track.

d) Randomly distributed in moving from the outer most track to the inner most track.

Question : 5

MAR (memory address register)

a) Contains data to be written into memory.

b) Contains data to be read from memory.

c) Specifies location in memory for next read/or writer.

d) Contains address of next instruction to be fetched.