operating system set 3 Detailed Explanation And More Example

Question : 1

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 : 2

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

Question : 3

The disk and tape devices are referred as

a) Block oriented I/O devices

b) Stream oriented I/O devices

c) Logical I/O devices

d) None of these

Question : 4

Following is not the stream oriented I/O device

a) Printer

b) Mouse

c) Communication modules

d) Disk/tape

Question : 5

The operations of the processor are supervised by

a) Control and Status register

b) Data register.

c) Address register.

d) None of these.

Question : 6

The following is not an advantage of User Level Threads (ULT).

a) Thread switching does not requires kernel mode privileges because all of the thread management are within the user address space of a single process.

b) Here scheduling can be application specific.

c) ULT can be run an any operating system.

d) When ULT executes a system call, not only that thread blocked, but all of the threads within the process are blocked.