[Mar-2022] Linux Foundation LFCS DUMPS WITH REAL EXAM QUESTIONS
2022 New TorrentValid LFCS PDF Recently Updated Questions
NEW QUESTION 69
Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)
- A. --upto=
- B. --date=
- C. --from=
- D. --until=
- E. --since=
Answer: D,E
NEW QUESTION 70
CORRECT TEXT
What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)
Answer:
Explanation:
menu .lst, grub.conf, grub.cfg
NEW QUESTION 71
SUMULATION
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)
Answer:
Explanation:
cmdline -or- /proc/cmdline
NEW QUESTION 72
What is true regarding TCP port 23?
- A. Port 23 is the well known port for the SSH service which provides secure logins.
- B. Port 23 is the well known port for the telnet service which is a plain text protocol that should no longer be used.
- C. Port 23 is the well known port for the rlogin service which is SSL secured by default.
- D. Port 23 is the well-known port for the system login services which are encrypted when the user runs the starttls command in his login shell.
Answer: B
NEW QUESTION 73
Which of the following characters can be combined with a separator string in order to read from the current input source until the separator string, which is on a separate line and without any trailing spaces, is reached?
- A. <|
- B. !<
- C. <<
- D. &<
Answer: C
Explanation:
Explanation
NEW QUESTION 74
Which character starts a comment line in a shell script file?
- A. #
- B. /
- C. ;
- D. *
Answer: A
NEW QUESTION 75
What is the default action of the split command on an input file?
- A. It will break the file into new files of 1,024 byte pieces each.
- B. It will break the file into new files that are no more than 5% of the size of the original file.
- C. It will break the file into new files of 1,024 kilobyte pieces each.
- D. It will break the file into new files of 1,000 line pieces each.
Answer: D
NEW QUESTION 76
What is the purpose of the iconv command?
- A. It verifies that the root directory tree complies to all conventions from the Filesystem Hierarchy Standard (FHS).
- B. It changes the mode of an inode in the ext4 file system.
- C. It converts bitmap images from one format to another such as PNG to JPEG.
- D. It displays additional meta information from icon files ending in .ico.
- E. It converts files from one character encoding to another.
Answer: E
NEW QUESTION 77
Which of the following words is used to restrict the records that are returned from a SELECT SQL query based on a supplied criteria for the values in the records?
- A. WHERE
- B. CASE
- C. IF
- D. FROM
Answer: A
NEW QUESTION 78
In order to display all currently mounted filesystems, which of the following commands could be used? (Choose TWO correct answers.)
- A. free
- B. cat /proc/self/mounts
- C. cat /proc/filesystems
- D. lsmounts
- E. mount
Answer: B,E
NEW QUESTION 79
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. inetd
- B. mountd
- C. xinetd
- D. tcpd
- E. fingerd
Answer: D
NEW QUESTION 80
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
Answer: A
NEW QUESTION 81
Which of the following programs can be used to determine the routing path to a given destination?
- A. ping
- B. traceroute
- C. dig
- D. netstat
- E. route
Answer: B
NEW QUESTION 82
Which shell command is used to continue background execution of a suspended command?
- A. exec
- B. :&
- C. bg
- D. cont
- E. &
Answer: C
NEW QUESTION 83
Which of the following keywords can be used in the file /etc/resolv.conf? (Choose TWO correct answers.)
- A. method
- B. nameserver
- C. search
- D. lookup
- E. substitute
Answer: B,C
NEW QUESTION 84
Given a file called birthdays containing lines like:
YYYY-MM-DD Name
1983-06-02 Tim
1995-12-17 Sue
Which command would you use to output the lines belonging to all people listed whose birthday is in May or June?
- A. grep '[0-9]*-0[56]-' birthdays
- B. grep 06 birthdays | grep 05
- C. grep '[56]' birthdays
- D. grep 05?6? birthdays
Answer: A
NEW QUESTION 85
Which of the following commands replaces each occurrence of 'bob' in the file letter with 'Bob' and writes the result to the file newletter?
- A. sed 's/bob, Bob/' letter > newletter
- B. sed '/bob/Bob' letter >newletter
- C. sed 's/bob/Bob' letter > newletter
- D. sed 's/bob/Bob/g' letter > newletter
- E. sed s/bob/Bob/ letter < newletter
Answer: D
NEW QUESTION 86
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