LFCS Linux Foundation Certified System Administrator Question and Answers

After adding a new email alias to the configuration, which command must be run in order to ensure the MTA knows about it? (Specify the command without any path but including all required parameters.)

Which of the following commands will output all of the lines with the name Fred in upper or lower case but not the word red from the file data_file?(Choose two)

Which approach will provide a listing of the contents in a tar archive?

Which of the following statements is correct when talking about /proc/?

What is the lowest numbered unprivileged TCP port? (Specify the number in digits only.)

After configuring printing on a Linux server, the administrator sends a test file to one of the printers and it fails to print. What command can be used to display the status of the printer's queue? (Specify ONLY the command without any path or parameters.)

What is the purpose of the Bash built-in export command?

Which of the following commands shows the current color depth of the X Server?

What is true about the file /etc/localtime?

Why is the correct configuration of a system's time zone important?

Which shell command is used to continue background execution of a suspended command?

What command displays all aliases defined in the current shell? (Specify the command without any path information)

What is true regarding the command userdel --force --remove bob? (Choose TWO correct answers.)

Which of the following is a legacy program provided by CUPS for sending files to the printer queues on the command line?

Which of the following fields are available in both the global /etc/crontab file as well as in user-specific crontab files? (Select TWO correct answers)

Which of the following commands should be added to /etc/bash_profile in order to change the language of messages for an internationalized program to Portuguese (pt)?

Which of the following commands lists all currently installedpackages when using RPM package management?

Which file inside the CUPS configuration directory contains the definition of the printers?

Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)

What output will the following command sequence produce?

echo '1 2 3 4 5 6' | while read a b c; do

echo result: $c $b $a;

done

Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)

Which of the following commands preloads and manages keys that are used for automatic authentication while logging in to other machines using SSH?

Which of the following commands can remove a user from a group?

Which of the following commands prints a listof usernames (first column) and their primary group (fourth column) from the /etc/passwd file?

What is the output of the following command sequence?

for token in a b c; do

echo -n "$token ";

done

What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)

Which of the following commands can be used to search for the executable file foo when it has been placed in a directory not included in $PATH?

Which of the following files, located in the user home directory, is used to store the Bash history?

What is the default name of the configuration file for the Xorg X11 server? (Specify the file name only without any path.)

In compliance with the FHS, in which of the directories are man pages found?

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?

What happens after issuing the command vi without any additional parameters?

Which file used by XDM specifies the default wallpaper?

Which of the following options is used in a GRUB Legacy configuration file to define the amount of time that the GRUB menu will be shown to the user?

What of the following statements are true regarding /dev/ when using udev? (Choose TWO correct answers.)

Which of the following environment variables overrides or extends the list of directories holding shared libraries?