Question # 1

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

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-n

-i

-d

-al

Which command changes a files group owner

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chmod

chgrp

chown

chgrep

File inode number can be viewed by.

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-8

-1

-a

-t

Banker's algorithm deals with

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Dead lock prevention

Dead lock avoidance

Dead look recovery

Mutual exclusion

Which operating system use write through catches.

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UNIX

XENIX

ULTRIX

DOS

Which is signal user operating system.

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MS-DOS

UNIX

XENIX

LINUX

Scissoring enables

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A part of data to be displayed

Entire data to be displayed

Full data display on full area of seen

No data display

Which one shows the name of the operating system.

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U name -n

Uname -I

U name - m

U name -o

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 command is used to extract a column from a text file.

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get

tar

untar

cut

What communication command provides communication to another user logged on by writing to the bottom of their terminal

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Chat

Talk

Write

Sending

Multiprogramming system

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Are easier to develop than signal programming system.

Execute each job faster

Execute more jobs in the same time

Are used only on large main frame computers.

Poor response times are caused by

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Busy processor

High I/O rate

High paging rates

any of above

Which scheduling policy is most suitable for time shared operating system.

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Shortest job first

FCFS

LCFS

Round robin

By which command content of a file can be searched.

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grep

search

srh

show

The system calls in UNIX is written using which language.

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Java

C

C++

Assembly

A publics key encryption system.

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Allows only the correct sender to decode the data

Allows only the correct receiver to decode the data

Allows any one to decode the data

None of above

Which command is used to determine the path of an executable file.

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which

whom

locate

wex

Tee command is used in LINUX for.

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Read from an input and write to a standard output and file.

Read from an input

Write to an output

None of above

Memory protection is normally done by

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The processor and the associated hardware

The operating system

The compiler

The user program

Default permissions of file can be changed with.

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Group

Chperm

chmod

Chall

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