LFCS Linux Foundation Certified System Administrator Free Practice Exam Questions (2025 Updated)
Prepare effectively for your Linux Foundation LFCS Linux Foundation Certified System Administrator certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.
Which of the following commands can be used to limit the amount of memory a user may use?
What output will the following command produce?
seq 1 5 20
In a nested directory structure, which find command line option would be used to restrict the command to searching down a particular number of subdirectories?
Which port is the default server port for the HTTPS protocol? (Specify the port number using digits.)
Which of the following statements is valid in the file /etc/nsswitch.conf?
Which of the following statements is correct when talking about /proc/?
Which of the following environment variables overrides or extends the list of directories holding shared libraries?
In which file, if present, must all users be listed that are allowed to use the cron scheduling system? (Specify the full name of the file, including path.)
Each entry in a crontab must end with what character?
What word is missing from the following SQL statement?
__________ count(*) from tablename;
(Please specify the missing word using lower-case letters only.)
What command displays all aliases defined in the current shell? (Specify the command without any path information)
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.)
Which umask value will result in the default access permissions of 600 (rw-------) for files and 700 (rwx------) for directories? (Specify only the numerical umask value.)
Which of the following are tasks handled by a display manager like XDM or KDM? (Choose TWO correct answers.)
Which Debian package management tool asks the configuration questions for a specific already installed package just as if the package were being installed for the first time? (Specify ONLY the command without any path or 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 grep command will print only the lines that do not end with a / in the file foo?
Whichof the following commands displays the contents of a gzip compressed tar archive?
What is NOT contained in the locale setting of the operating system?
Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?
