UNIX Commands MCQs

By: Prof. Fazal Rehman Shamil

Solved MCQs of Administrator Specific Commands and Privileges in UNIX

Administrator Specific Commands and Privileges MCQs

The prompt for system administrator is________
(A). #
(B). %
(C). $
(D). &
(E). None of these
Multiple Choice Question Answer: a


Where are we placed when we log in as root users?
(A). /bin
(B). /admin
(C). /system
(D). /root
(E). None of these
Multiple Choice Question Answer: d


Which functionalities are carried out by the root user?
(A). by managing the disk space, by performing the backup, by changing the attributes of a file
(B). performing backup
(C). changing attributes of a file
(D). managing disk space
(E). None of these
Multiple Choice Question Answer: a


The superuser for changing root’s password uses which of the following command?
(A). pd
(B). pswd
(C). password
(D). pwd
(E). None of these
Multiple Choice Question Answer: b


What restricts and controls the access to the use of at and batch?
(A). at.allow, batch.allow
(B). batch. deny, batch.allow
(C). at.allow , batch.deny
(D). at.allow, at.deny
(E). None of these
Multiple Choice Question Answer: d


The current directory is not included by the PATH for superusers.
(A). False
(B). True
(C). Partially True
Multiple Choice Question Answer: b


What command do we use to acquire superuser status?
(A). su
(B). pu
(C). admn
(D). super
(E). None of these
Multiple Choice Question Answer: a


What is the system administrator called?
(A). master user
(B). superuser
(C). master and superuser
(D). root user
(E). None of these
Multiple Choice Question Answer: c


To set the date of the system, the system administrator uses what command?
(A). date
(B). su
(C). dt
(D). chdt
(E). None of these
Multiple Choice Question Answer: a


Which of the following command allows superusers to communicate with users?
(A). comm
(B). cron
(C). wall
(D). date
(E). None of these
Multiple Choice Question Answer: c


Login name of the system administrator is______
(A). su
(B). root
(C). master
(D). admin
(E). None of these
Multiple Choice Question Answer: b


What is used to create a user’s environment?
(A). su
(B). su – –
(C). -su
(D). su –
(E). None of these
Multiple Choice Question Answer: d


By using what the User’s environment mode created by using su – is terminated?
(A). ctrl-v
(B). ctrl-d
(C). ctrl-q
(D). ctrl-f
(E). None of these
Multiple Choice Question Answer: b


At and the batch command is accessed by only system administrator If both at.allow and at.deny are not present.
(A). False
(B). True
(E). None of these
Multiple Choice Question Answer: b


Which of the following command is used to set the limits on file size?
(A). limit
(B). flimit
(C). flim
(D). ulimit
(E). None of these
Multiple Choice Question Answer: d


Which command is used to create a new group?
(A). chgrp
(B). chown
(C). groupadd
(D). addgrp
(E). None of these
Multiple Choice Question Answer: c


What command do we use to add a new user to the system?
(A). grpadd
(B). uadd
(C). useradd
(D). adduser
(E). None of these
Multiple Choice Question Answer: c


To report free space on the disk Which command do we use?
(A). df
(B). fd
(C). du
(D). sg
(E). None of these
Multiple Choice Question Answer: a


Which option do we use with df command to display the total amount of the disk space in file system?
(A). -t
(B). -d
(C). -a
(D). -e
(E). None of these
Multiple Choice Question Answer: a


Which option do we use with df command to display the total amount of the disk space in file system in the terms of Kilobytes?
(A). -a
(B). -d
(C). -k
(D). -t
(E). None of these
Multiple Choice Question Answer: c


Where is all the user information is stored?
(A). etc/shadow
(B). bin/passwd
(C). bin/users/passwd
(D). etc/passwd
(E). None of these
Multiple Choice Question Answer: d


Which field is not stored in /etc/passwd?
(A). username
(B). encrypted password
(C). UID, GID
(D). password
(E). None of these
Multiple Choice Question Answer: b


To modify the parameters of existing users the administrator Uses which command?
(A). userdel
(B). userchange
(C). usermod
(D). useradd
(E). None of these
Multiple Choice Question Answer: c


By using what the SUID for any file is set by the administrator?
(A). chmod
(B). chmod us filename
(C). chmod s filename
(D). chmod u+s filename
(E). None of these
Multiple Choice Question Answer: d


The sticky bit is set by the superuser.
(A). True
(B). False
(C). Partially True
Multiple Choice Question Answer: a


Which command shuts down and reboot the system?
(A). shutdown -g2
(B). shutdown -y -g0 -i6
(C). shutdown -g2 -g0
(D). shutdown -g2 i6
(E). None of these
Multiple Choice Question Answer: b


Which commands are used for maintenance of the user accounts?
(A). useradd, usermod, userdel
(B). usermod
(C). userdel
(D). useradd
(E). None of these
Multiple Choice Question Answer: a


To remove users from the system we use userdel.
(A). True
(B). False
(C). Partially True
Multiple Choice Question Answer: a


To shut down the system administrator uses shut down command.
(A). False
(B). True
(C). Partially True
Multiple Choice Question Answer: b


Which option do we use with the shutdown command to override the default waiting time?
(A). -s
(B). -e
(C). -g
(D). -i
(E). None of these
Multiple Choice Question Answer: c


What is the set of routines needed to operate a specific device called?
(A). device file
(B). device driver
(C). device program
(D). device software
(E). None of these
Multiple Choice Question Answer: b


Which command do we use to format the diskettes?
(A). format and fdformat
(B). fdformat
(C). frmt
(D). format
(E). None of these
Multiple Choice Question Answer: a


Copying of diskettes is performed. Performed by which command?
(A). pp
(B). dd
(C). du
(D). df
(E). None of these
Multiple Choice Question Answer: b


To back up files which option is used by tar command?
(A). -c
(B). -a
(C). -d
(D). -f
(E). None of these
Multiple Choice Question Answer: a


What option do we use to restore files using tar?
(A). -a
(B). -x
(C). -v
(D). -c
(E). None of these
Multiple Choice Question Answer: b


We use -t option with the tar command to display the archive.
(A). False
(B). True
(C). Partially True
Multiple Choice Question Answer: b


standard input can be by tar command for obtaining its file list.
(A). True
(B). False
(E). None of these
Multiple Choice Question Answer: b


To find out the consumption of a specific directory what command do we use?
(A). mem
(B). df
(C). du
(D). dv
(E). None of these
Multiple Choice Question Answer: c


With du command to find only the summary of disk usage by a specific directory, what option do we use?
(A). -e
(B). -s
(C). -e
(D). -f
(E). None of these
Multiple Choice Question Answer: b


To report the disk space consumed by each user we use the du command.
(A). True
(B). False
(C). Partially True
Multiple Choice Question Answer: a


The device file has no data in it.
(A). False
(B). True
(C). Partially True
Multiple Choice Question Answer: b


In what all device files are stored?
(A). kernel
(B). /home/usr
(C). /home
(D). /dev
(E). None of these
Multiple Choice Question Answer: d


The backup program is_________
(A). cpio
(B). trap
(C). ciop
(D). bckup
(E). None of these
Multiple Choice Question Answer: a


With redirection and piping we can use the cpio program.
(A). True
(B). False
(C). Partially True
Multiple Choice Question Answer: a


with the cpio program we use________
(A). -a
(B). -i
(C). -i and -o
(D). -o
(E). None of these
Multiple Choice Question Answer: c

Prof. Fazal Rehman Shamil