Question 1

Which of the following are requirements in order to run a shell script like a regular command fromanywhere in the filesystem? (Choose THREE correct answers.)

Options :

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.

Answer: B,C,D

Question 2

What is true about the ntpdate command?

Options :

A : It is the primary management command for the NTP time server.

B : It updates the local system-s date (i.e. day, month and year) but not the time (i.e. hours, minutes,seconds).

C : It queries one or more NTP time servers and adjusts the system time accordingly

D : It sends the local system time to one or many remote NTP time servers for redistribution.

E : It can be used by any user to set the user clock independently of the system clock.

Answer: C

Question 3

What entry can you add to syslog.conf file to have all syslog messages generated by your system go to virtual console 12?

Options :

A : *.* /dev/tty12

B : /var/log/messages | /dev/tty12

C : | /dev/tty12

D : syslog tty12

E : mail.* /dev/tty12

Answer: A

Question 4

Which of the following commands puts the output of the command date into the shell variable mydate?

Options :

A : mydate="$(date)"

B : mydate="exec date"

C : mydate="$((date))"

D : mydate="date"

E : mydate="${date}"

Answer: A

Question 5

What is true regarding a default route?

Options :

A : The default route is always used first. When the default route is not available more specific routes are tried.

B : When a default route is set, all other routes are disabled until the default route is deleted.

C : The default route is only used if there is not a more specific route to a destination host or network.

D : Without a default route, no network communication even in directly attached networks is possible.

Answer: C

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