Linux Foundation Linux Foundation Certified SYSADMIN LFCS Questions & Answers

• Question 31:

  What is the purpose of the command mailq?

  A. It fetches new emails from a remote server using POP3 or IMAP.

  B. It is a multi-user mailing list manager.

  C. It is a proprietary tool contained only in the qmail MTA.

  D. It queries the mail queue of the local MTA.

  E. It is a command-line based tool for reading and writing emails.

  Correct Answer: D

• Question 32:

  Which of the following commands can be used to create a USB storage media from a disk image?

  A. gdisk

  B. dd

  C. cc

  D. fdisk

  E. mount

  Correct Answer: B

• Question 33:

  Whichof the following commands displays the contents of a gzip compressed tar archive?

  A. gzip archive.tgz | tar xvf

  B. tar ztf archive.tgz

  C. gzip -d archive.tgz | tar tvf

  D. tar cf archive.tgz

  Correct Answer: B

• Question 34:

  Which of the following is a valid IPv6 address?

  A. 2001:db8:3241::1

  B. 2001::db8:4581::1

  C. 2001:db8:0g41::1

  D. 2001%db8%9990%%1

  E. 2001.db8.819f..1

  Correct Answer: A

• Question 35:

  Which of the following pieces of information of an existing file is changed when a hard link pointing to that file is created?

  A. File size

  B. Modify timestamp

  C. Link count

  D. Inode number

  E. Permissions

  Correct Answer: C

• Question 36:

  Which command displays a list of allbackground tasks running in the current shell? (Specify ONLY the command without any path or parameters.)

  A. jobs

  Correct Answer: A

• Question 37:

  Which of the following command sequences overwrites the file foobar.txt?

  A. echo "QUIDQUIDAGIS" >> foobar.txt

  B. echo "QUIDQUIDAGIS" < foobar.txt

  C. echo "QUIDQUIDAGIS" > foobar.txt

  D. echo "QUIDQUIDAGIS" | foobar.txt

  Correct Answer: C

• Question 38:

  Which file should be edited to select the network locations from which Debian installation package files are loaded?

  A. /etc/dpkg/dpkg.cfg

  B. /etc/apt/apt.conf

  C. /etc/apt/apt.conf.d

  D. /etc/apt/sources.list

  E. /etc/dpkg/dselect.cfg

  Correct Answer: D

• Question 39:

  Which command is used to sync the hardware clock to the system clock? (Specify ONLY the command without any path or parameters.)

  A. hwclock, /sbin/hwclock, /usr/sbin/hwclock

  Correct Answer: A

• Question 40:

  What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?

  A. /lib/init.so

  B. /sbin/init

  C. /etc/rc.d/rcinit

  D. /proc/sys/kernel/init

  E. /boot/init

  Correct Answer: B