Operating System MCQs

Question 1

The system/370 assembler language

Accepted Answer

allows the programmer to write base registers and displacements explicitly in the source program.

Answer

is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain.

Answer

allows multiple programs to reside in separate areas of core at the same time.

Answer

is a term that refers to the control programs of an operating system.

Question 2

Scheduling is

Accepted Answer

allowing jobs to use the processor

Answer

unrelated to performance consideration

Answer

not required in uniprocessor systems

Answer

the same regard-less of the purpose of the system

Question 3

What scheduling algorithm allows processes that are logical runnable to be temporarily suspended?

Accepted Answer

preemptive scheduling

Answer

non-preemptive scheduling

Answer

FIFO

Answer

FCFS

Question 4

In an absolute loading scheme, which loader function is accomplished by the loader

Accepted Answer

Loading

Answer

Reallocation

Answer

Allocation

Answer

Linking

Question 5

The computational technique used to compute the disk storage address of individual records is called:

Accepted Answer

hashing

Answer

bubble memory

Answer

key fielding

Answer

dynamic reallocation

Question 6

For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 7

The file structure that redefines its first record at a base of zero uses the term:

Accepted Answer

relative organization

Answer

key fielding

Answer

dynamic reallocation

Answer

hashing

Question 8

What is the name given to all the programs inside the computer with makes it usable?

Accepted Answer

System software

Answer

Application software

Answer

Firm ware

Answer

Shareware

Question 9

Semaphores

Accepted Answer

synchronize critical resources to prevent deadlock

Answer

synchronize critical resources to prevent contention

Answer

are used to do I/O

Answer

are used for memory management