Question # 1

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

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-n

-i

-d

-al

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

What is the meaning of SVR 4

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System five release 4

System version release 4

System five relocated 4

Storage files five release 4

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

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1981

1982

1983

1984

In which of the following usually a front end processor is used.

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Virtual storage

Time sharing

Multi programming

Multi heading

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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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.

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

File inode number can be viewed by.

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-8

-1

-a

-t

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 is not a valid file type in LINUX.

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Socket

FIFO

Soft link

Inode

The system calls in UNIX is written using which language.

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Java

C

C++

Assembly

Belady anomaly occurs in

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Optimal replacement

FIFO

LRU

Both in FIFO and LRU

Reference bit is used for

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Implementing LRU page replacement algorithm

Implementing NRU algorithm

To check the page table entry in the cache memory

None of above

Which command is used to know the LINUX version.

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Uname

Vname

Iname

s name

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.

All device files are stored in which directory.

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/etc

/dev

/www

/html

Distributed system should.

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High security

Have better resource sharing

Better system utilization

Low system overhead

Solaris is product of.

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IBP

IBM

Microsoft

Sun microsystmes

File can have.

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Read access

Write access

Copy access

All of above

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

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

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