operating system set 4 Detailed Explanation And More Example

Question : 1

I/O redirection

a) implies changing the name of a file

b) can be employed to use an exiting file as input file for a program

c) implies connection to programs through a pipe

d) none of the above

Question : 2

In disk scheduling, the seek time is

a) The time taken to position the head at the track.

b) The time taken to reach the beginning of sector once the track is selected.

c) A and B both.

d) None of these.

Question : 3

Which is/are the most important features of Microsoft windows program?

a) Windows

b) Pull-down menus

c) Icons

d) All of the above

Question : 4

In micro kernel architecture following is false.

a) Intersection takes place only between adjacent layers.

b) Intersection takes place via micro kernel.

c) It supports portability.

d) It supports object-oriented operating system.

Question : 5

In UNIX process management, the user processes runs in

a) Kernel mode only

b) Kernel and user mode both

c) User mode only

d) None of these.

Question : 6

Given three switch processes, when they occur match them (1) Clock Interrupt A- The processor encounters a virtual memory address reference for a word that is not in the main memory. (2) I/O Interrupt B- The operating system determines whether the currently running process has been executed for the maximum allowable time slice. (3) Memory fault C- The operating system determines the I/O action that occurs.

a) 1-A, 2-B, 3-C

b) 1-B, 2-C, 3-A

c) 1-B, 2-A, 3-C

d) 1-C, 2-B, 3-A.