Operating System MCQs

Question 1

Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?

Accepted Answer

load-and-go assembler

Answer

two pass assembler

Answer

macroprocessor

Answer

compiler

Question 2

Virtual memory is

Accepted Answer

used in all major commercial operating systems

Answer

simple to implement

Answer

less efficient in utilization of memory

Answer

useful when fast I/O devices are not available

Question 3

Object code

Accepted Answer

must be "loaded" before execution

Answer

is ready to execute

Answer

is the output of compilers, but not assemblers

Answer

must be rewritten before execution

Question 4

The term "operating system" means

Accepted Answer

a set of programs which controls computer working

Answer

the way a computer operator works

Answer

conversion of high level language into machine code

Answer

the way a floppy disk drive operates

Question 5

Which of the following might be used to convert high-level language instructions into machine language?

Accepted Answer

an interpreter

Answer

system software

Answer

applications software

Answer

an operating environment

Question 6

Indicate which is a pre-emptive scheduling algorithm

Accepted Answer

Round-robin

Answer

Shortest-job-next

Answer

Priority-based

Answer

All of the above

Question 7

Which of the following, is necessary to work on a computer

Accepted Answer

Operating system

Answer

Compiler

Answer

Assembly

Answer

Interpreter of the above

Question 8

Access time is the highest in the case of

Accepted Answer

magnetic disk

Answer

floppy disk

Answer

cache

Answer

swapping devices

Question 9

Which of the following is not a characteristic of a daisy chaining priority control scheme?

Accepted Answer

priority is programmable

Answer

it is relatively easy to add more devices to the chain

Answer

the failure of one device may affect other devices on the chain

Answer

the number of control lines is independent of the number of devices on the chain