Operating System MCQs

Question 1

The advantage(s) inherent to using high level languages is (are)

Accepted Answer

All of the above

Answer

Fewer people, less management and shorter transition in learning time

Answer

Improved debugging capability, and superior documentation

Answer

A greater degree of machine independence

Question 2

Addressing modes

Accepted Answer

are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.

Answer

defines the fundamental method of determining effective operand addresses

Answer

performs indicated operations on two fast registers of the machine and leave the result in one of the registers.

Answer

all of the above

Question 3

In which way(s) a macro processor for assembly language can be implemented:

Accepted Answer

all of the above

Answer

independent two-pass processor

Answer

independent one-pass processor

Answer

processor incorporated into pass 1 of a standard two-pass assembler

Question 4

Which of the following is a type of systems software used on microcomputers?

Accepted Answer

All of the above

Answer

MS-DOS

Answer

PC-DOS

Answer

Unix

Question 5

The working set theory of programming behaviour of processes running within an operating system involves

Accepted Answer

the collection of pages that a process accesses

Answer

disk scheduling mechanisms

Answer

coalescing holes in memory

Answer

assigning the CPU to processes

Question 6

Operating system is

Accepted Answer

A collection of software routines

Answer

A collection of hardware components

Answer

A collection of input-output devices

Answer

All of the above

Question 7

A file organization component of a VSAM file is:

Accepted Answer

all of the above

Answer

relative record data set

Answer

keyed sequential data set

Answer

entry sequential data set

Question 8

What is the name given to the software which can be legally compiled and often used for free?

Accepted Answer

Public domain program

Answer

Shareware program

Answer

Firmware program

Answer

Mindware

Question 9

The SJF algorithm executes first the job

Accepted Answer

with the least processor needs

Answer

that last entered the queue

Answer

that first entered the queue

Answer

that has been in the queue the longest