What is the default UID of root user in the Linux operating system?
0
1
2
3
Correct Answer :
A. 0
The 0 UID is reserved for root users in Linux operating system.
Related Questions
Which directory contains grub configuration file?
/lib
/usr
/boot
/etc
Which exact command is used to disable password for a particular user?
usermod -D
usermod -d
usermod -l
usermod -L
Which command is used to cut a file from one location and paste to the other location?
cut
ct
move
mv
Which of the following command is used to move one word forward in the vi editor?
b
ww
w
yw
Which of the following commands is used to create a new user in the Linux operating system?
createuser
adduser
useradd
user
In Linux File System, which symbol is used before filename in case of hidden files?
#
$
Dot (.)
@
The scope of an environment variable can be?
Local
Global
Both
None
Which of the following command is not used to extract a compressed file?
untar
tar
gunzip
bunzip2
Suppose that a text file abc.txt that contains multiple lines, some of the line contains word school. Then how to print only those line who contains school using AWK?
awk '/school/ {print}' abc.txt
awk -check '/school/ {print}' abc.txt
awk -check '/school/ ' abc.txt
None of the above
Which of the following information can be displayed using the netstat command?
a) Information about programs related to open socket.
b) Information about routing tables.
c) Statistics about all ports
d) All of the above
Options:
A and B
B and C
A and C
D
What is the full form of AWK?
Active Working Kit
Active Well Kudos
Aho Weinberger Kernighan
Anderson Washington Kernighan
Which Linux command is used to assign a password to the created user?
password
newpass
passwd
pwd
Which of the following directory contains device files?
/device
/devfile
/dev
/sys
What are the basic components of the Linux operating system?
a) Kernel
b) Kernel Modules
c) Shared Libraries
d) User Programs
Options:
A and B
A, B, and C
B, C, and D
A, B, C, and D
Which command is used to check the access and modification time of a file in Linux?
check
filetimes
state
file
Which of the following statements are the correct about grep command?
a) This command is used to filter the content of the file.
b) This command is not used to filter the content of the file.
c) We can search the specified word in the file using grep command.
d) There is no grep command that exists in the Linux operating system.
Options:
Only A
Only A
A and B
A and C
What operations are performed when a new user is created?
Creates a new home directory for the user
The ownership and permissions are assigned to the home directory
Both of the above
None of the above
In the cut command, a delimiter can be?
a) Hyphen
b) Space
c) Slash
d) All of the above
Options:
A
B
C
D
Which of the following commands are used to switch from command mode to insert mode in the vi editor?
a) i
b) a
c) o
d) O
Options
A and B
A and C
A, C, and D
A, B, C, and D
Which of the following statements are the correct about XXXsort command?
a) This command is used to sort the content of a file in alphabetical order.
b) This command is used to sort the content of a file based on the column.
c) This command is used for numeric sorting bases on the column.
d) None of the Above.
Options:
A and B
A and C
A, B, and C
D
Which of the following command is used to get brief information about Linux commands and functions?
info
incmd
whatis
cmddocs
Which command is used to enable/disable password for a particular user?
usermod
userenable
userdisable
change
Which of the following are correct types of shells used in the Linux operating system?
a) Bourne shell
b) Korn shell
c) Bourne Again shell
d) POSIX shell
Options:
A and B
B and C
A, B, and C
A, B, C, and D
Which exact command is used to change from the current directory to the previous directory?
cd ..
cd ~
cd -
cd .
Which exact command is used to remove a user from the group in the Linux system?
delgroup d
remusr d
gpasswd -d
rm d
Which of the following modes are used to assign permission to the file in the Linux operating system?
Numeric mode
Symbolic mode
Both
None
Which exact command is used to show information about specified interface?
ip show
ip a show
ip b show
ip
Which of the following command is used to get information about the File Hierarchy System?
man rfs
man hier
man hfs
man fhs
Which of the following command is used to replace the specific word, for example we want to replace inclusion by exclusion?
echo inclusion | sed 's/in/ex'
echo inclusion | sed 's/ex/in'
echo inclusion | sed 'r/in/ex'
echo inclusion | sed 'R/in/ex'
Which exact command is used to see the calendar of the year 2020?
cal 2020
cal -y 2020
calendar 2020
None of the above