Question # 1

Spooling most beneficial where

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Jobs are I/O bound

Jobs are CPU bound

Jobs are evenly divided as I/O bound are CPU bond

All of above

Disk scheduling includes decinding

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Which should be accessed next

Order in which disk access requests must be serviced

The physical location of the file

the logical location of the file

Dirty bit is used ot show

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Page with corrupted data

Wrong page in memory

Page that a modified after being loaded in the cache memory

Page that is less frequently accessed

which option of 'grep' displays the line number as well.

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-n

-i

-d

-al

Which process is known for initializing a microcomputer with its OS.

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Cold booting

Boot recording

Booting

Warm booting

To display disk consumption of a specific directory which command is used.

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dd

du

dt

di

Which scheduling policy is best suited for time sharing operating system.

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Shortest job first

Round robin

First come first serve

Elevator

Which operating system reacts in the acutal time.

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Batch system

Quick response system

Real time system

Time sharing system

A high paging rate

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May cause a high I/O rate

Keeps the system running well

Is a symptom of too much processor activity

Always creates a slow system.

Belady anomaly occurs in

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Optimal replacement

FIFO

LRU

Both in FIFO and LRU

Fragmentation of a file system.

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Occurs only is file is not used properly

Can always the prevented

Happens in all file systems.

Can be removed by conmpaction

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PPSC Computer Science Chapter 19 Operating System Online Test MCQs With Answers

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