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Welcome to the IO Systems MCQs Page

Dive deep into the fascinating world of IO Systems with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of IO Systems, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of IO Systems, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through IO Systems. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of IO Systems. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

IO Systems MCQs | Page 2 of 6

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Q11.
How does the Hardware trigger an interrupt ?

a.

Sending signals to CPU through 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

Discuss
Answer: (a).Sending signals to CPU through system bus
Q12.
Which operation is performed by an interrupt handler ?

a.

Saving the current state of the system

b.

Loading the interrupt handling code and executing it

c.

Once done handling, bringing back the system to the original state it was before the interrupt occurred

d.

All of these

Discuss
Answer: (d).All of these
Q13.
Why is the Software interrupt required by the processor?

a.

Return from subroutine.

b.

Obtain system services, which need execution of privileged instruction.

c.

Test the interrupt system of the processor.

d.

Implement co-routines.

Discuss
Answer: (b).Obtain system services, which need execution of privileged instruction.
Q14.
Match the following list1 with list2:
a. DMA I/O -------------------------------------- 1. High speed RAM
b. Cache ---------------------------------------- 2. Disk
c. Interrupt I/O --------------------------------- 3. Printer
d. Condition code register ------------------- 4. ALU

a.

a – 2, b – 1, c – 3, d - 4

b.

a – 4, b – 1, c – 3, d - 2

c.

a – 2, b – 3, c – 1, d - 4

d.

a – 3, b – 4, c – 2, d - 1

Discuss
Answer: (a).a – 2, b – 1, c – 3, d - 4
Q15.
Which of the following is an example of Spooled Device?

a.

A graphic display device

b.

A line printer used to print the output of a number of jobs

c.

A terminal used to enter input data to a running program

d.

A secondary storage device in a virtual memory system

Discuss
Answer: (b).A line printer used to print the output of a number of jobs
Q16.
The following is not a layer of IO management module

a.

PIOCS (Physical Input Output Control System)

b.

LIOCS (Logical Input Output Control System)

c.

FS (File System)

d.

MCS (Management Control System)

Discuss
Answer: (d).MCS (Management Control System)
Q17.
If one or more devices use a common set of wires to communicate with the computer system, the connection is called ______

a.

CPU

b.

Monitor

c.

Wirefull

d.

Bus

Discuss
Answer: (d).Bus
Q18.
A ____ a set of wires and a rigidly defined protocol that specifies a set of messages that can be sent on the wires.

a.

port

b.

node

c.

bus

d.

none of the mentioned

Discuss
Answer: (c).bus
Q19.
When device A has a cable that plugs into device B, and device B has a cable that plugs into device C and device C plugs into a port on the computer, this arrangement is called a _________

a.

port

b.

daisy chain

c.

bus

d.

cable

Discuss
Answer: (b).daisy chain
Q20.
The _________ present a uniform device-access interface to the I/O subsystem, much as system calls provide a standard interface between the application and the operating system.

a.

Devices

b.

Buses

c.

Device drivers

d.

I/O systems

Discuss
Answer: (c).Device drivers
Page 2 of 6

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