Question # 1

Printer in the file structure can be found in.

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/etc

/html

/www

/dev

Belady anomaly occurs in.

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LIFO

FIFO

LRU

NRU

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

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

If two files on same partition point to the same inode structure they are called.

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Soft links

Hard links

Copy links

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Multiprocessing

Interactive processing

Batch processing

Real time processing

How applications communicates with kernel.

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Not disclosed by linux team

SSL

System calls

Shell

Which of following is not an advantage of multiprogramming.

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Increased through out

Shorter response time

Ability to assign priories of jobs

Decreased system overload

Which technique is used by operating systems to execute several program concurrently by switching back and forth.

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Partitioning

Multitasking

Windowing

Paging

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

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dd

du

dt

di

What is the command that can print lines of first file matching with second file.

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Printline

cmp

com

comn

Which among the following is used to write small program to control Linux Functionalities.

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Shell commands

Shell script

C

Java

When did IBM released the first version of its disk operating system DOS version 1.0

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1981

1982

1983

1984

Which of following need a device driever.

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Cache

Disk

Main memory

Registers

Which command is used to set limits on file size.

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U limit

Alimit

dlimit

wilmit

Which is non pre emptive

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Round robin

FIFO

MS

MSF

Seek analysis is for.

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Paging issues

Device busy problems

Control unit busy problems

All of above

Poor response times are caused by

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Busy processor

High I/O rate

High paging rates

any of above

Solaris is product of.

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IBP

IBM

Microsoft

Sun microsystmes

Creating a job queue is a function of

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Spooler

Interpolator

Complier

Drive

Belady anomaly occurs in

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Optimal replacement

FIFO

LRU

Both in FIFO and LRU

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

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