Operating System MCQs

Question 1

The CPU, after receiving an interrupt from an I/O device

Accepted Answer

branches off to the interrupt service routine after completion of the current instruction

Answer

halts for a predetermined time

Answer

hands over control of address bus and data bus to the interrupting device

Answer

branches off to the interrupt service routine immediately

Question 2

Seeks analysis

Accepted Answer

is used for analyzing device busy problems

Answer

is used for analyzing paging problems

Answer

is used for analyzing control-unit busy problems

Answer

is only shown on real-time displays

Question 3

Which is a permanent database in the general model of the compiler?

Accepted Answer

Terminal Table

Answer

Literal Table

Answer

Identifier Table

Answer

Source code

Question 4

What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?

Accepted Answer

Multitasking

Answer

Partitioning

Answer

Windowing

Answer

Paging

Question 5

Operating system

Accepted Answer

provides a layered, user-friendly interface

Answer

links a program with the subroutines it references

Answer

enables the programmer to draw a flowchart

Answer

all of the above

Question 6

Software that measures, monitors, analyzes, and controls real-world events is called:

Accepted Answer

real-time software

Answer

system software

Answer

scientific software

Answer

business software

Question 7

The details of all external symbols and relocation formation (relocation list or map) is provided to linker by

Accepted Answer

Translator

Answer

Macro processor

Answer

Loader

Answer

Editor

Question 8

The macro processor must perform

Accepted Answer

all of the above

Answer

recognize macro definitions and macro calls

Answer

save the macro definitions

Answer

expand macros calls and substitute arguments

Question 9

A development strategy whereby the executive control modules of a system are coded and tested first, is known as

Accepted Answer

Top-down development

Answer

Bottom-up development

Answer

Left-Right development

Answer

All of the above