Reliable Linux Foundation Certified LFCS Dumps PDF Dec 27, 2023 Recently Updated Questions
Pass Your Linux Foundation LFCS Exam with Correct 260 Questions and Answers
NEW QUESTION # 61
CORRECT TEXT
Which command, available with all MTAs, is used to list the contents of the MTA's mail queue? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
mailq, /usr/bin/mailq, sendmail -bp, /usr/sbin/sendmail -bp, /usr/lib/sendmail -bp, sendmail, /usr/sbin/sendmail, /usr/lib/sendmail
NEW QUESTION # 62
Which utility would be used to change how often a filesystem check is performed on an ext2 filesystem without losing any data stored on that filesystem?
- A. fsck
- B. mke2fs
- C. fixe2fs
- D. tune2fs
- E. mod2fs
Answer: D
NEW QUESTION # 63
Which of the following programs uses the hosts.allow file to perform its main task of checking for access control restrictions to system services?
- A. xinetd
- B. fingerd
- C. tcpd
- D. inetd
- E. mountd
Answer: C
NEW QUESTION # 64
Which of the following is the device file name for the second partition on the only SCSI drive?
- A. /dev/sda2
- B. /dev/sd0a2
- C. /dev/hda1
- D. /dev/sd1p2
Answer: A
NEW QUESTION # 65
Which of the following shell redirections will write standard output and standard error output to a file named filename?
- A. 2>&1 >filename
- B. >filename 2>&1
- C. 1>&2>filename
- D. >>filename
- E. 1&2>filename
Answer: B
NEW QUESTION # 66
Which command is used to set restrictions on the size of a core file that is created for a user when a program crashes?
- A. ulimit
- B. edquota
- C. quota
- D. core
Answer: A
NEW QUESTION # 67
Given the following routing table:
How would an outgoing packet to the destination 192.168.2.150 be handled?
- A. It would be passed to the default router 255.255.255.0 on eth0.
- B. It would be passed to the router 192.168.1.1 on eth0.
- C. It would be directly transmitted on the device eth0.
- D. It would be directly transmitted on the device wlan0.
- E. It would be passed to the default router 192.168.178.1 on wlan0.
Answer: B
NEW QUESTION # 68
Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)
- A. top
- B. up
- C. time -up
- D. uptime
- E. uname -u
Answer: A,D
NEW QUESTION # 69
What can the Logical Volume Manager (LVM) be used for? (Choose THREE correct answers.)
- A. To dynamically create or delete logical volumes.
- B. To create snapshots.
- C. To create RAID 9 arrays.
- D. To dynamically change the size of logical volumes.
- E. To encrypt logical volumes.
Answer: A,B,D
NEW QUESTION # 70
Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)
- A. --upto
- B. --from
- C. --date
- D. --since
- E. --until
Answer: D,E
NEW QUESTION # 71
Which of the following file permissions belong to a symbolic link?
- A. lrwxrwxrwx
- B. +rwxrwxrwx
- C. srwxrwxrwx
- D. -rwxrwxrwx
Answer: A
NEW QUESTION # 72
Which of the following are commonly used Mail Transfer Agent (MTA) applications? (Choose THREE correct answers.)
- A. SMTPd
- B. Sendmail
- C. Postfix
- D. Procmail
- E. Exim
Answer: B,C,E
NEW QUESTION # 73
What does the command mount -a do?
- A. It shows all mounted file systems that have been automatically mounted.
- B. It ensures that all file systems listed with the option auto in /etc/fstab are mounted.
- C. It ensures that all file systems listed in /etc/fstab are mounted regardless of their options.
- D. It opens an editor with root privileges and loads /etc/fstab for editing.
- E. It ensures that all file systems listed with the option noauto in /etc/fstab are mounted.
Answer: B
NEW QUESTION # 74
CORRECT TEXT
Which command will disable swapping on a device? (Specify ONLY the command without any path or parameters.)
Answer:
Explanation:
swapoff, /sbin/swapoff
NEW QUESTION # 75
Which of the following commands redirects the output of cmd to the file foo.txt, in which an existing file is overwritten?
- A. cmd | foo.txt
- B. cmd >> foo.txt
- C. cmd || foo.txt
- D. cmd > foo.txt
- E. cmd && foo.txt
Answer: D
NEW QUESTION # 76
Which of the following commands will write a message to the terminals of all logged in users?
- A. print
- B. yell
- C. wall
- D. mesg
- E. bcast
Answer: C
NEW QUESTION # 77
Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?
- A. sshd
- B. ssh-keygen
- C. ssh-agent
- D. ssh-add
Answer: C
NEW QUESTION # 78
Which of the following commands will print the last 10 lines of a text file to the standard output?
- A. dump -n 10 filename
- B. head -n 10 filename
- C. tail -n 10 filename
- D. cat -n 10 filename
Answer: C
NEW QUESTION # 79
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