Question 1

Command used to display the contents of the file in reverse order.

technology operating systems

tac
cat
tail -f
head

Answer

Correct Option: A

Question 2

Display only directories from a particular location/folder

technology operating systems

ls -d
ls -l | grep "$d"
ls -l | grep "^d"
ls -ltr | grep -d

Answer

Correct Option: C

Question 3

Command which can be used to copy the contents to file and also display on screen

technology operating systems

tee
> (Redirection operator)
Redirection operator (>) and Standard Ouput ($1)
All

Answer

Correct Option: A

Question 4

Command used to get the top 5 file / directory occupying more space.

technology operating systems

du | sort -r | head -5
du | sort -nr | head -5
du | sort -n | head -5
du

Answer

Correct Option: B

Question 5

Output of "echo $$"

technology operating systems

$$
$
Process ID of the current session.
Process ID of the parent session

Answer

Correct Option: C

Question 6

Command used to check the usage of the various file systems mounted

technology operating systems

df
du
1 and 2
None

Answer

Correct Option: A

Question 7

Display only files with ".zip" extension from the current directory

technology operating systems

ls -ltr *.zip
ls -ltr | grep "zip$"
1 and 2
None

Answer

Correct Option: C

Question 8

Which command would generate the ouput "Today is " eg: If today was 25th oct then the output would be "Today is 101025"

technology operating systems

echo "Today is date +%y%m%d"
1 and 2
echo Today is date +%y%m%d
None

Answer

Correct Option: B

Question 9

Command used to verify the status of the Argon agent

technology operating systems

ps -ef | grep argon
ps -ef | grep "argon"
1 and 2
None

Answer

Correct Option: C

Question 10

How kill the process in a single line?

technology operating systems

ps
kill PID
kill ps
kill -9 "PID"

Answer

Correct Option: D

Question 11

What is the default value of umask?

technology operating systems

022
032
644
000

Answer

Correct Option: A

Question 12

What is the command to see the number of fork in Linux system ?

technology operating systems

cat /proc/meminfo
vmstat
vmstat -f
ls

Answer

Correct Option: C

Question 13

How to find all the only hidden file in the dir?

technology operating systems

ls
ls -s
ls -a
ls -a .*

Answer

Correct Option: C

Question 14

How to find Kernel IP routing table ?

technology operating systems

ifconfig
netstat -r
ping
none

Answer

Correct Option: B

Question 15

How to get the info of only active internet connections in the Unix system ?

technology operating systems

netstat
netstat -s
netstat -t
all the above

Answer

Correct Option: C

Question 16

What is the default value of nice ?

technology operating systems

3
1
11
0

Answer

Correct Option: D

Question 17

Ram Can Hold The Data And Programs Which In Currently Use, It Is UN Volatile Memory.

technology operating systems

True
False

Answer

Correct Option: B

Question 18

With Suitable Applications Installed, PCs Can Process graphics as well as text.

technology operating systems

True
False

Answer

Correct Option: A

Question 19

Peripherals Devices Are Part Of Hardware?

technology operating systems

True
False

Answer

Correct Option: A

Question 20

Which of The Following Can Convert The Computer Signals From Digital To Analog?

technology operating systems

ISDN
Modem
DSL
HDSL

Answer

Correct Option: B

Description: operating systems Online Quiz - 25
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: operating systems

operating systems Online Quiz - 25

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