010-150 Online Practice Questions and Answers

Which one of the following statements concerning the General Public License (GPL) is true?

A. The GPL is designed to ensure that the source code of a software remains freely available.

B. The GPL is identical to the BSD license.

C. GPL software may never be sold for money.

D. If you change a program you received under the GPL, you must send your changes to the original author for approval.

E. GPL software may not be used to run nuclear reactors or air traffic control systems.

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 option will cause the echo command NOT to output a trailing newline?

A. -e

B. -p

C. -n

D. -s

The output of the program date should be saved in the variable actdat. What is the correct statement?

A. actdat=`date`

B. set actdat='date'

C. date | actdat

D. date > $actdat

E. actdat=date

Which network interface always exists in a Linux system?

A. lo

B. sit0

C. wlan0

D. vlan0

E. eth0

After installing a new package, in which directory are you most likely find its configuration file?

A. /lib

B. /conf

C. /etc

D. /usr

E. /opt

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

Which of the following files holds the definition of the local user accounts?

A. /etc/secret

B. /etc/users

C. /etc/passwd

D. /etc/id

E. /etc/home

Which of the following will change the group that is associated with a file?

A. chmod

B. chmod -w

C. chown

D. ls -g

What is the usual absolute path of the personal directory for the user foo?