Os_Test

Check how much u have prepared OS/UNIX?? Succcesss ? Fail!! ?

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Os_Test

Round robin scheduling is essentially the preemptive version of _____________ ?

题 1 out of 20

FIFO SJF

Os_Test

What is a shell?

题 2 out of 20

It is a command interpreter. It is a part of Compiler and Interpreter.

Os_Test

Multiprogramming systems __________________________________.

题 3 out of 20

Execute each job faster. Execute more jobs in the same time.

Os_Test

The number of process completed per unit time is known as ______________.

题 4 out of 20

capacity Throughput

Os_Test

A tree structured file directory system

题 5 out of 20

allows easy storage and retrival of file names. is not essential when we have millions of iles.

Os_Test

The hardware mechnism that enables a device to notify the CPU is called ___________.

题 6 out of 20

interrupt polling

Os_Test

Process state if a part of ______________.

题 7 out of 20

Inode Process Control Block

Os_Test

The removal of process from active contention of CPU and reintroduce them into memory later is known as _________

题 8 out of 20

interrupt swapping

Os_Test

Real time Systems are ________________.

题 9 out of 20

used for monitoring events as they occur. used for real time interactive users.

Os_Test

___________ allocates largest hole ( free fragment) available in the memory.

题 10 out of 20

First fit Worst fit

Os_Test

__________ contains information about the file , including ownership , permissions and location of file contents.

题 11 out of 20

FCB File Systems

Os_Test

The OS of a computer serves as a software interface between the user and the _______________.

题 12 out of 20

hardware peripheral

Os_Test

The shell variable which holds the shell prompt is __________.

题 13 out of 20

HOME PS1

Os_Test

Which of the following symbol represent redirection??

题 14 out of 20

| <

Os_Test

The command used to display long listing of ile is :

题 15 out of 20

ls -l ls -r

Os_Test

Which command is used to delete a directory?

题 16 out of 20

rd -rf rm -rf

Os_Test

___________ command searches specifically for pattern parameters that are fixed strings.

题 17 out of 20

fgrep sed

Os_Test

____ utility works by sequentially reading a file line by line into memory.

题 18 out of 20

awk sed

Os_Test

We have two types of Environmental variables________________

题 19 out of 20

Local and Global PS1 and PS2

Os_Test

Predict the outcome : a=( a b c d e) echo $a ->> ?

题 20 out of 20

a a b c d e

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