operating system set 5 Detailed Explanation And More Example

Question : 1

CD defines

a) Computer device

b) Computer disk

c) Compact disk

d) None of these

Question : 2

In disk storage devices during read and write operation

a) Head is rotate while platter is stationary

b) Head is stationary while platter rotates

c) Head and platter are both stationary

d) None is true

Question : 3

In file management, in the following record blocking method, the optional use of space is made, without unused space left

a) Fixed blocking

b) Variable-length spanned blocking

c) Variable-length un-spanned blocking

d) None of these.

Question : 4

Fragmentation of the file system

a) occurs only if the file system is used improperly

b) can always be prevented

c) can be temporarily removed by compaction

d) is the characteristic of all files system

Question : 5

The C-SCAN, in disk scheduling states

a) The arm movement is uni directional

b) The arm movement is bidirectional

c) The are is to be state fixed

d) None of these.

Question : 6

In uni-processor scheduling, shortest remaining time policy is

a) A policy where scheduler chooses the process that has the shortest expected remaining processing time.

b) A policy where scheduler discards the process that has the shortest expected remaining process time.

c) A policy where process with shortest expected processing time is selected next.

d) None of these.