operating system set 3 Detailed Explanation And More Example

Question : 1

Round robin is a

a) kind of magnetic drum

b) process scheduling policy

c) process synchronization policy

d) memory allocation policy

Question : 2

In a fixed head disk, the number of read/write head per track are

a) One

b) Two

c) Three

d) Four.

Question : 3

Access to moving head disks requires three periods of delay before information is brought into memory. The response that correctly lists the three time delays for the physical access of data in the order of the relative speed from the slowest to the fastest is

a) latency time, cache overhead time, seek time

b) transmission time, latency time, seek time

c) seek time, latency time, transmission time

d) cache overhead time, latency time, seek time

Question : 4

A Semaphore is initialized to

a) Negative integer value

b) Positive integer value

c) Non-negative integer value

d) Non-positive integer value.

Question : 5

Fixed partitions

a) are very common in current operating systems

b) are very efficient in memory utilization

c) are very inefficient in memory utilization

d) are most used on large mainframe operating systems

Question : 6

In file management system the following communicate directly with periphing I/O devices.

a) Device drives

b) Basic file system

c) Basic I/O supervisor

d) Logical I/O.