Question # 1

In real time OS, which is most suitable scheduling scheme.

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Round robin

FCFS

Pre-emptive scheduling

Random scheduling

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

A thread is.

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Lightweight process where the context switching is low

Lightweight process where the context switching is high

Used to speed up paging

Used in dead locks

Which among following scheduling algorithms give minimum average waiting time.

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FCFS

SJF

Round rabin

On priority

Which command in vi editor command is used to copy the current line of the file.

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ys

yy

yc

yw

Size of virtual memory depends on

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Size of data bus

Size of address bus

Size of main memory

None of above

In vi editor which command sets the number for all lines.

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Set nu

Set ni

Set sn

Set sl

What is meaning of ILP32

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32 bit integrated Long & Pointer

32 bit integer long & pointer

32 bit integer Long & Point

32 bit integer , Lost & pointer

Remote computing services involves the use of.

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Multi processing

Multi programming

Batch processing

Real time processing

Which command is concerned with LINUX kernel log messages.

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dmsg

dmesg

cmsg

cmesg

Distributed system should.

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High security

Have better resource sharing

Better system utilization

Low system overhead

What control character signals the end of the input file.

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Ctrl + s

Ctrl + z

Ctrl + w

Ctrl + d

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

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Cold booting

Boot recording

Booting

Warm booting

Which command reads the content of another file in vi editor .

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erd

ex

r

read

By which command content of a file can be searched.

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grep

search

srh

show

Default permissions of file can be changed with.

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Group

Chperm

chmod

Chall

Which command gives the first byte where the difference is in the file 1 & file2

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Diff

differ

Cmp

Compare

Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.

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Buffer cache

Spooling

Pooling

Virtual memory

Which of the following memory allocation scheme is subject to external fragmentation.

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Segmentation

Swapping

Demand paging

Multiple contiguous fixed partitions

Which is not a valid file type in LINUX.

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Socket

FIFO

Soft link

Inode

Which command is used to know the LINUX version.

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Uname

Vname

Iname

s name

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