Unix/Linux

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UNIX

Question 1 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Is a program that runs as a background process. Some examples of the service are httpd, nfsd, ntpd, ftpd and named.

A
Program
B
Service
C
System
Question 2 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
change permission of a file to rw-r.....r-x?

A
chmod 546 file
B
chmod 642 file
C
chmod 645 file
D
chmod 655 file
Question 3 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Interrupts current activity

A
Ctrl + D
B
Ctrl + S
C
Ctrl + C
D
Ctrl + Q
Question 4 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
To remove read operation from both group and others, command used by,

A
chmod go-r filename
B
chmod go+r filename
C
chmod go*r filename
D
chmod go/r filename
Question 5 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is an example of a special character

A
&
B
A
C
:
D
K
Question 6 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which one of the following is NOT true?

A
Kernel is the program that constitutes the central core of the operating system.
B
Kernel is the first part of operating system to load into memory during booting.
C
Kernel is made of various modules which can not be loaded in running operating system.
D
Kernel remains in the memory during the entire computer session.
Question 7 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
what is the use of lsblk command

A
list block device file
B
list all character device file
C
both of the above option
D
none of the above option
Question 8 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which command is used to list all the files with extension .lst?

A
ls -l *.lst
B
ls lst*
C
ls *.*
D
ls *[lst]
Question 9 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
which commands gives the no of recently logged in users?

A
who
B
who | wc -w
C
whoami | wc -l
D
who | wc -l
Question 10 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the lifespan of a variable inside a shell script?
A
The lifespan of a variable inside shell script is only until the end of execution.
B
The lifespan of a variable inside shell script is till the system is shut down
C
The lifespan of a variable inside shell script Lifetime.
D
None of the Above
There are 10 questions to complete.