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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 5 of 6

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Q41.
An asynchronous call :

a.

returns immediately, without waiting for the I/O to complete

b.

does not return immediately and waits for the I/O to complete

c.

consumes a lot of time

d.

is too slow

Discuss
Answer: (a).returns immediately, without waiting for the I/O to complete
Q42.
Buffering is done to :

a.

cope with device speed mismatch

b.

cope with device transfer size mismatch

c.

maintain copy semantics

d.

all of the mentioned

Discuss
Answer: (d).all of the mentioned
Q43.
Caching is ________ spooling.

a.

same as

b.

not the same as

c.

all of the mentioned

d.

none of the mentioned

Discuss
Answer: (b).not the same as
Q44.
Caching :

a.

holds a copy of the data

b.

is fast memory

c.

holds the only copy of the data

d.

holds output for a device

Discuss
Answer: (a).holds a copy of the data
Q45.
Spooling :

a.

holds a copy of the data

b.

is fast memory

c.

holds the only copy of the data

d.

holds output for a device

Discuss
Answer: (c).holds the only copy of the data
Q46.
The ________ keeps state information about the use of I/O components.

a.

CPU

b.

OS

c.

kernel

d.

shell

Discuss
Answer: (c).kernel
Q47.
The kernel data structures include :

a.

process table

b.

open file table

c.

close file table

d.

all of the mentioned

Discuss
Answer: (b).open file table
Q48.
Windows NT uses a __________ implementation for I/O.

a.

message – passing

b.

draft – passing

c.

secondary memory

d.

cache

Discuss
Answer: (a).message – passing
Q49.
A ________ is a full duplex connection between a device driver and a user level process.

a.

Bus

b.

I/O operation

c.

Stream

d.

Flow

Discuss
Answer: (c).Stream
Q50.
I/O is a _________ in system performance.

a.

major factor

b.

minor factor

c.

does not matter

d.

none of the mentioned

Discuss
Answer: (a).major factor
Page 5 of 6

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