Menu

Question Discussion & Solution

MCQ

Q.

What is an ISR?

A

Information Service Request

B

Interrupt Service Request

C

Interrupt Service Routine

D

Information Service Routine

Community Discussion

No discussions yet. Be the first to start!

You must be logged in to participate in the discussion.

Login to Discuss

Similar Questions

MCQ

1.

The ______ register is read by the host to get input.

A

flow in

B

flow out

C

data in

D

data out

Discussion

MCQ

2.

The __________ is used by device controllers to request service.

A

nonmaskable interrupt

B

blocked interrupt

C

maskable interrupt

D

none of the mentioned

Discussion

MCQ

3.

How does the Hardware trigger an interrupt?

A

Sending signals to CPU through a system bus

B

Executing a special program called interrupt program

C

Executing a special program called system program

D

Executing a special operation called system call

Discussion

MCQ

4.

When hardware is accessed by reading and writing to the specific memory locations, then it is called ____________

A

port-mapped I/O

B

controller-mapped I/O

C

bus-mapped I/O

D

none of the mentioned

Discussion

MCQ

5.

A character stream device transfers ____________

A

bytes one by one

B

block of bytes as a unit

C

with unpredictable response times

D

none of the mentioned

Discussion

More Operating System Topics

Introduction to Operating System

5 MCQs

Types

16 MCQs

Services

2 MCQs

Structures

3 MCQs

Processes

58 MCQs

Threads

47 MCQs

CPU Scheduling

79 MCQs

Process Synchronization

117 MCQs

Memory Management

179 MCQs

Storage Management

283 MCQs

Input Output Systems

55 MCQs

Networking

36 MCQs

Distributed Operating System

73 MCQs

Protection and Security

123 MCQs

Unix

145 MCQs

Linux

160 MCQs

MS Windows

1 MCQs

Mixed

10 MCQs

Operating Systems Overview

0 MCQs

Process Management

0 MCQs

Finding and Processing Files

0 MCQs

File Management

0 MCQs