010-150 Online Practice Questions and Answers

Which of the following is a Linux based operating system for use on mobile devices?

A. iOS

B. CentOS

C. Android

D. Debian

Which of the following is a requirement of the GPL license but not the BSD license?

A. Users who modify and distribute the software under the GPL license, must make the modifications they made, available to the recipients under the same license.

B. The GPL license forbids the removal of copyright and license notices from source code files that are distributed.

C. The GPL license contains a disclaimer of warranty requiring users not to hold the software authors liable for any damages.

D. The GPL license requires that any legal disputes be settled with the mediation of the Free Software Foundation.

Which of the following are correct commands for changing the current directory to the user's home? (Choose TWO answers)

A. cd /home

B. cd ~

C. cd ..

D. cd

E. cd /

While deleting all files beginning with the letter a there was still the file Access.txt left. Assuming that it had the correct ownership, why was it not deleted?

A. Files with extensions need a different treatment.

B. rm had to be called with the option -R to delete all files.

C. The file Access.txt was probably opened by another application.

D. The file Access.txt was hidden.

E. Linux file names are case sensitive.

What command would you use to get comprehensive documentation about any command in Linux?

A. help command

B. echo command

C. locate command

D. man command

E. get command

Which of the following commands can be used to extract files from an archive?

A. tar -vf

B. tar -xvf

C. tar -evf

D. tar -e

E. tar v

How can the normal output of a command be written to a file while discarding the error output?

A. command >2>file 1and>/dev/null

B. command < output > /dev/null

C. command > discard-error > file

D. command > /dev/null 2and>1 output

E. command >file 2>/dev/null

Which of the following commands can be used to extract content from a tar file?

A. tar -xvf

B. tar -vf

C. tar -e

D. tar -c

E. tar v

Which of the following hardware devices links a number of computers together to form an Ethernet LAN?

A. Server

B. Switch

C. Connector

D. Access point

E. Terminal

A Linux computer has no access to the internet. Which command displays information about the network gateway for the system?

A. traceroute

B. ifconfig

C. gateway

D. route

E. ipconfig

What is the command that will show system boot time messages?

A. dmesg

B. echo

C. lspci

D. display system boot

E. messages

Which permissions should be given to a file that needs to be opened and edited by the file's owner and opened read-only by the file's group?

A. 0751

B. 0466

C. 0540

D. 0640

E. 0444

What are the three sets of permissions for a file?

A. user, group, others

B. administrator, group, others

C. user, standard user, others

D. administrator, standard user, others

When typing a long command line at the shell, what single character can be used to split a command

across multiple lines?

What two character sequence is present at the beginning of an interpreted script? (Please specify the

TWO correct characters only)