Exam Details

  • Exam Code
    :LFCS
  • Exam Name
    :Linux Foundation Certified System Administrator (LFCS)
  • Certification
    :Linux Foundation Certifications
  • Vendor
    :Linux Foundation
  • Total Questions
    :260 Q&As
  • Last Updated
    :Jul 11, 2025

Linux Foundation Linux Foundation Certifications LFCS Questions & Answers

  • Question 141:

    Which environment variable should be set in order to change the time zone for the commands run from within the environment variable's scope? (Specify the variable name only.)

    A. TZ

  • Question 142:

    Which of the following parameters are used for journalctl to limit the time frame of the output? (Choose TWO correct answers.)

    A. --from=

    B. --since=

    C. --until=

    D. --upto=

    E. --date=

  • Question 143:

    Which of the following commands is used to update the list of available packages when using dpkg based package management?

    A. apt-get update

    B. apt-get upgrade

    C. apt-cache update

    D. apt-get refresh

    E. apt-cache upgrade

  • Question 144:

    What do the permissions -rwSr-xr-x mean for a binary file when it is executed as a command?

    A. The command is SetUID and it will be executed with the effective rights of the owner.

    B. The command will be executed with the effective rights of the group instead of the owner.

    C. The execute flag is not set for the owner. Therefore the SetUID flag is ignored.

    D. The command will be executed with the effective rights of the owner and group.

  • Question 145:

    In the vi editor, which of the following commands will copy the current line into the vi buffer?

    A. c

    B. cc

    C. 1c

    D. yy

    E. 1y

  • Question 146:

    Which character in the password field of /etc/passwd is used to indicate that the encrypted password is stored in /etc/shadow?

    A. *

    B.

    C. s

    D. x

  • Question 147:

    Whenremoving a package, which of the following dpkg options will completely remove the files including configuration files?

    A. --clean

    B. --delete

    C. --purge

    D. –remove

  • Question 148:

    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 '[56]' birthdays

    B. grep 05?6? birthdays

    C. grep '[0-9]*-0[56]-' birthdays

    D. grep 06 birthdays | grep 05

  • Question 149:

    Which of the following commands lists the dependencies of a given dpkg package?

    A. apt-cache depends-on package

    B. apt-cache dependencies package

    C. apt-cache depends package

    D. apt-cache requires package

  • Question 150:

    Which of the following commands will change the quota for a specific user?

    A. edquota

    B. repquota

    C. quota -e

    D. quota

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