Question 1

How can you display the line numbers after opening a file in vi ?

technology operating systems

:se ic
:se nu
:set G
ctrl+n

Answer

Correct Option: B

Question 2

How can you insert a new line in vi ?

technology operating systems

Esc+O
Esc+i
Esc+G
Esc+x

Answer

Correct Option: A

Question 3

How can I remove a directory Fold1 (/home/Mydir/Fold1) which have 3 files in it .

technology operating systems

rm /home/Mydir/Fold1
remove /home/Mydir/Fold1
rm -r /home/Mydir/Fold1
rmdir /home/Mydir/Fold1

Answer

Correct Option: C

Question 4

Which command will search recursively in directories to list the file having a string “file” inside it's content.

technology operating systems

grep -l file find . -type f
Find . -type f | grep file
ls -1 | grep file
grep file ls -1

Answer

Correct Option: A

Question 5

What do you use to forward errors to a file?

technology operating systems

&> filename
1> filename
2> /dev/null
2> filename

Answer

Correct Option: D

Question 6

How to create a new file without opening it

technology operating systems

vi filename
touch filename
cat filename
more filename

Answer

Correct Option: B

Question 7

How can you append the output of a command to a file

technology operating systems

command <> file
command > file
command | file
file > command

Answer

Correct Option: B

Question 8

cal command is used to

technology operating systems

date
day
calendar
month

Answer

Correct Option: C

Question 9

grep is used to

technology operating systems

search a pattern
grape juice
grip a file
compress a file

Answer

Correct Option: A

Question 10

ls -i is used to

technology operating systems

list all files
list all hidden files
list files with inode number
list files starting with i

Answer

Correct Option: C

Question 11

vi is an

technology operating systems

editor
variable
object
class

Answer

Correct Option: A

Question 12

chmod is used to

technology operating systems

change moderators
change permission mode
change mind set
change nothing

Answer

Correct Option: B

Question 13

What is UNIX?

technology operating systems

Operating system
Comapny
Computer Language
software

Answer

Correct Option: A

Question 14

Which company originally developed UNIX?

technology operating systems

NASA
AT&T
IBM
Apple

Answer

Correct Option: B

Question 15

Which of the following operating systems are based on the UNIX kernel?

technology operating systems

Sun Solaris
MAC OS X
Windows 7
chrome OS

Answer

Correct Option: A,B,D

Question 16

Unix is written in a..........

technology operating systems

In high level language (C)
Assembly language (low level)
Machine Language
All of the above

Answer

Correct Option: A

Question 17

What is a Unix shell?

technology operating systems

A game
A command-line interperter
A sound card driver
A text editor

Answer

Correct Option: B

Question 18

Command to create user account in unix?

technology operating systems

createuser
newuser add
adduser
useradd

Answer

Correct Option: D

Question 19

Command use to connect to the outside world in unix

technology operating systems

remote
internet
vpn
telnet

Answer

Correct Option: D

Question 20

How do you create a new directory called "flower"?

technology operating systems

newdir flower
mkdir flower
crdir
mkdir

Answer

Correct Option: B

Description: operating systems Online Quiz - 7
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: operating systems

operating systems Online Quiz - 7

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