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QUESTION NO:3

Which command makes the shell variable named VARIABLE visible to subshells?

A. export $VARIABLE

B. export VARIABLE

C. set $VARIABLE

D. set VARIABLE

E. env VARIABLE

Correct Answer: B

QUESTION NO:19

What is the purpose of a screen reader?

A. . It reads text displayed on the screen to blind or visually impaired people.

B. It reads the parameters of the attached monitors and creates an appropriate X11 configuration.

C. It displays lines and markers to help people use speed reading techniques.

D. It manages and displays files that contain e-books.

Correct Answer: A

QUESTION NO:38

Which commands can be used to change a user\’s account aging information? (Choose THREE correct

answers.)

A. usermod

B. passwd

C. chattr

D. chage

E. chsh

Correct Answer: ABD

QUESTION NO:36

Which of the following files assigns a user to its primary group?

A. /etc/pgroup

B. /etc/shadow

C. /etc/group

D. /etc/passwd

E. /etc/gshadow

Correct Answer: D

QUESTION NO:15

What is the purpose of the file /etc/profile?

A. It contains the welcome message that is displayed after login.

B. It contains security profiles defining which users are allowed to log in.

C. It contains environment variables that are set when a user logs in.

D. It contains default application profiles for users that run an application for the first time.

Correct Answer: C

QUESTION NO:16

Which of the following are requirements in order to run a shell script like a regular command from

anywhere in the filesystem? (Choose THREE correct answers.)

A. The user issuing the command must be in the group script.

B. The script file must be found in the $PATH.

C. The script file must have the executable permission bit set.

D. The script must begin with a shebang-line (#!) that points to the correct interpreter.

E. The file system on which the script resides must be mounted with the option scripts.

Correct Answer: BCD

QUESTION NO:13

Which of the following commands lists all defined variables and functions within Bash?

A. env

B. set

C. env -a

D. echo $ENV

Correct Answer: B

QUESTION NO:2

When the command echo $ outputs 1, which of the following statements is true?

A. It is the process ID of the echo command.

B. It is the process ID of the current shell.

C. It is the exit value of the command executed immediately before echo.

D. It is the exit value of the echo command.

Correct Answer: C

QUESTION NO:31

Where are user specific crontabs stored?

A. In the database file /etc/crontab.db which is shared by all users.

B. As individual per-user files within /var/spool/cron.

C. As individual per-user files in /etc/cron.user.d.

D. In the .crontab file in the user\’s home directory.

E. In the file /var/cron/user-crontab which is shared by all users.

Correct Answer: B

QUESTION NO:9

How can the existing environment variable FOOBAR be suppressed for the execution of the script./

myscript only?

A. unset -v FOOBAR;./myscript

B. set -a FOOBAR=””;./myscript

C. env -u FOOBAR./myscript

D. env -i FOOBAR./myscript

Correct Answer: C

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