130+ Linux Operating System Solved MCQs

101.

How would you switch to virtual terminal 1?

A. Ctrl+Alt+F1
B. Alt+F1
C. Ctrl+F1
D. Shift+Ctrl+F1
Answer» A. Ctrl+Alt+F1
102.

In which directory are the crontab files for users stored on suse linux?

A. /var/spool/cron/tabs
B. /usr/lib/cron
C. /usr/bin/cron/crontabs
D. /var/spool/cron/users/tabs
Answer» A. /var/spool/cron/tabs
103.

How would you lock the user account named csm099?

A. usermod -l csm099
B. usermod -L csm099
C. usermod --l csm099
D. usermod -lock csm099
Answer» B. usermod -L csm099
104.

How do you copy an entire directory structure? E.g. from Project to Project.backup

A. cp -r Project Project.backup
B. cp -e Project Project.backup
C. cp -d Project Project.backup
D. cp -s Project Project.backup
Answer» A. cp -r Project Project.backup
105.

.............is the command used to create new directory.

A. mkdir
B. newdir
C. dir
D. mk/dir
Answer» A. mkdir
106.

Command used to create an empty file.

A. mtfile
B. touch
C. intouch
D. file
Answer» B. touch
107.

Which is the commmand used to remove or delete file with out confirmation msg ?

A. rm-f
B. rm
C. del
D. remove
Answer» B. rm
108.

........command is used to show the logger or user

A. ?
B. who
C. no of
D. ???
Answer» B. who
109.

"cat" is the command used to

A. change directory
B. move directory
C. come out of shell
D. see the contents of file
Answer» D. see the contents of file
110.

What command, followed by the directory name is used to access that specific directory?

A. cp
B. cd
C. access
D. acs
Answer» B. cd
111.

How would you show a list of files and directories that are inside the current directory.

A. list
B. listfiles
C. ls
D. lst
Answer» C. ls
112.

What command allows you to logout of the system?

A. lgt
B. logout
C. logot
D. out
Answer» B. logout
113.

You have written a shell script that must be run as root in order to work properly. What is the most secure way to give a normal user the ability to run this program?

A. Set permissions to 777 on the script
B. Make the user a member of the root group
C. Make the user the owner of the script
D. Set the SUID bit on the script
Answer» A. Set permissions to 777 on the script
114.

Which of the following modes of operation exist in vi?

A. insert
B. type
C. search
D. remove
Answer» A. insert
115.

Which of the following commands can be used to change the group owner of a file?

A. chown
B. chmod
C. chattr
D. attrch
Answer» B. chmod
116.

Which command to use for complete details of a command on the shell?

A. help
B. ?
C. man
D. hlp
Answer» C. man
117.

You need to change some settings on your Apache server. Which is the best tool to use for logging in remotely?

A. rsh
B. ssh
C. rlogin
D. telnet
Answer» B. ssh
118.

Which of the following runlevels will reboot the system?

A. 0
B. 2
C. 4
D. 6
Answer» D. 6
119.

You want to change the permissions on the file named “fifteen” so that root has all permissions and they are denied all other users. Which command should you use?

A. chmod fifteen 700
B. chmod 100 fifteen
C. chmod 700 fifteen
D. chmod fifteen 100
Answer» C. chmod 700 fifteen
120.

Your PC is unable to boot off the Linux install CD. Which utility should be used to create an installation boot floppy?

A. fdisk
B. cp
C. dd
D. tar
Answer» A. fdisk
121.

Which of the following below are true functionalities of shell?

A. Authenticates user
B. Interprets commands
C. Allocates time and memory to programs
D. Only a and b
Answer» B. Interprets commands
122.

Which of the following below are true functionalities of Kernel?

A. Allocates time and memory to programs
B. Authenticates user
C. Interprets commands
D. All choices are correct
Answer» A. Allocates time and memory to programs
123.

To implement new application on IBM z/10. Which of the following options need to be considered if it to be implemented in Linux?

A. IBMz/OS outperforms Red Hat Linux in commercial workloads
B. IBMz/OS is more expensive, Linux is shareware
C. Red Hat Linux does not support all devices supported by IBMz/OS
D. z/OS is supported by IBM SupportLine, whereas Red Hat Linux can only be supported by Red Hat
Answer» C. Red Hat Linux does not support all devices supported by IBMz/OS
124.

A process is identified by a unique

A. Pid
B. Id
C. processed
D. proid
Answer» A. Pid
125.

Which command reduces the size of a file?

A. pzip
B. gcat
C. pgcat
D. gzip
Answer» D. gzip
126.

Which of the following has greater market share of Linux SW/HW

A. Linux on z10
B. Linux HP integrity server
C. Linux on AS/400 servers locate
D. Linux on DELL Xeon
Answer» A. Linux on z10
127.

Which of the following is the BEST way to set up SSH(Secure Shell) for communicating between System without needing passwords?

A. Use ssh-keygen for generating public-private keys.
B. Disable passwords on specific accounts that will use SSH.
C. Both A and B
D. None of the above
Answer» A. Use ssh-keygen for generating public-private keys.
128.

Which command is used to see the online manual?

A. man
B. manual
C. *man
D. %man
Answer» A. man
129.

The head command writes the first ____________ lines of a file to screen by default.

A. Five
B. Twenty
C. Ten
D. Fifteen
Answer» C. Ten
130.

Which command is used to find what is in your home directory?

A. % List
B. % Is
C. % home
D. Either a or c
Answer» B. % Is
131.

What is the shortcut to the home directory?

A. shift+cd
B. cd+enter key
C. alt+ctrl+cd
D. ctrl+cd
Answer» B. cd+enter key
132.

What is used to search files for specified words or patterns?

A. Less
B. Srch
C. %src
D. grep
Answer» D. grep
133.

Which character is used to match exactly one character?

B. *
C. ^
D. ?
Answer» D. ?
134.

The hierarchy of a series of directories branching in a user system starts from

A. home
B. root
C. /home
D. /root
Answer» C. /home
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