operating system set 6 Detailed Explanation And More Example

Question : 1

Arrange the following I/O device in increasing data rate Hard disk, Floppy disk, Key board

a) Key board, Floppy disk, Hard disk

b) Floppy disk, Key board, Hard disk

c) Key board, Hard disk, Floppy disk

d) Hard disk, Floppy disk, Key board.

Question : 2

The normalized turnaround time is

a) Ratio of turnaround time to service time

b) Ratio of turnaround time to waiting time

c) Ratio of service time to waiting time

d) Ratio of waiting time to service time.

Question : 3

Application Programming Interface is

a) A set of function and call programs that allows clients and servers to intercommunicate.

b) A database, where information access is limited to the selection of rows that satisfy all search criteria.

c) A computer usually a high powered work station.

d) None of these.

Question : 4

Which of the following RAID level uses independent access technique and distributes the parity strips across all disks?

a) Two

b) Three

c) Four

d) Five

Question : 5

In real time computing

a) The result of computation does not depend on the time at which computation is done.

b) The result of computation also depends on the time at which computation is done.

c) The results are independent of the time considered.

d) None of these.

Question : 6

The lowest level of I/O control consists of

a) device drivers

b) interrupt handlers

c) both A and B above

d) none of the above