LFCS 試験問題を無料オンラインアクセス

Regarding the command: nice -5 /usr/bin/prog
Which of the following statements is correct?

• A./usr/bin/prog is executed with a priority of 5.
• B./usr/bin/prog is executed with a nice level of 5.
• C./usr/bin/prog is executed with a nice level of -5.
• D./usr/bin/prog is executed with a priority of -5.

What is true about the file /etc/localtime?

• A.It is a symlink to /sys/device/clock/ltime and always contains the current local time.
• B.It is created and maintained by the NTP service based on the geolocation of the system's IP address.
• C.It is either a symlink to or a copy of a timezone information file such as /usr/share/zoneinfo/Europe/Berlin.
• D.It is a plain text file containing a string such as Europe/Berlin.

After modifying GNU GRUB's configuration file, which command must be run for the changes to take effect?

• A.kill -HUP $(pidof grub)
• B.No action is required
• C.grub
• D.grub-install

How can the existing environment variable FOOBAR be suppressedfor the execution of the script./myscript only?

• A.env -i FOOBAR./myscript
• B.set -a FOOBAR="";./myscript
• C.unset -v FOOBAR;./myscript
• D.env -u FOOBAR./myscript

Instead of supplying an explicit device in /etc/fstab for mounting, what other options may be used to identify the intended partition? (Choose TWO correct answers.)

• A.NAME
• B.FIND
• C.LABEL
• D.ID
• E.UUID