operating system set 2 Detailed Explanation And More Example

Question : 1

The memory management, y one clock policy is applied then the page first loaded into a frame in memory its use bit is set to

a) Zero

b) One

c) Two

d) Three

Question : 2

The UNIX, an operating system supports

a) Multiple user processes and single thread per process.

b) Multiple user processes and multiple threads per process.

c) Single user process and single thread per process.

d) Single user process and multiple threads per process.

Question : 3

The only state transition initiated by the user process itself in an operating system is

a) Block

b) Timer run out

c) Dispatch

d) Wake up

Question : 4

Par begin (P1)

a) Suspends main program, execute procedure P1 and after execution resume main program.

b) Procedure P1 is delayed infinitely due to other procedure are given preference.

c) Procedure P1 is not considered for execution.

d) None of these.

Question : 5

The portion of the process scheduler in an operating system that dispatches processes is concerned with

a) activating suspended I/O-bound processes

b) temporarily suspending processes when CPU load is too great

c) assigning ready processes to the CPU

d) all of the above

Question : 6

External fragmentation solved by which allocation?

a) contiguous allocation

b) linked allocation

c) index allocation

d) both B and C