operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 41

The operations of the processor are supervised by

a) Control and Status register

b) Data register.

c) Address register.

d) None of these.

Question : 42

Following is not the stream oriented I/O device

a) Printer

b) Mouse

c) Communication modules

d) Disk/tape

Question : 43

Process control block is also referred as

a) Fast control block

b) Process descriptor

c) Task descriptor

d) A, B, C are all true.

Question : 44

A monitor program is a program that

a) interprets the interrupt calls

b) restores the status of the CPU after a function call

c) interprets the input from a keyboard and converts the input into its binary equivalent

d) checks the status of the I/O devices

Question : 45

A disk scheduling algorithm in an operating system causes the disk arm to seek back and forth across the disk surface servicing all requests in its path, based on

a) First Come First Served

b) Shortest Seek Time First

c) Sean

d) None of these