LFCS Linux Foundation Certified System Administrator Questions and Answers

Which command is used in a Linux environment to create a new directory? (Specify ONLY the command without any path or parameters.)

Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?

Which of the following details is NOT provided in any output from the netstat utility?

When trying to unmount a device it is reported as being busy. Which of the following commands could be used to determine which process is causing this?

What word is missing from the following SQL statement?

__________ count(*) from tablename;

(Please specify the missing word using lower-case letters only.)

Which directory holds the files that configure the xinetd service when using several configuration files instead of an integrated configuration file? (Specify the full path to the directory.)

Which of the following are syslog facilities? (Choose TWO correct answers.)

With X11 forwarding in ssh, what environment variable is automatically set in the remote host shell that is not set when X11 forwarding is not enabled? (Specify only the environment variable without any additional commands or values.)

Which of the following find commands will print out a list of files owned by root and with the SUID bit set in /usr?

Which of the following IPv4 networks are reserved by IANA for private address assignment and private routing? (Choose THREE correct answers.)

Which of the following information is stored within the BIOS? (Choose TWO correct answers.)

Which commands can be used to change a user's account aging information? (Choose THREE correct answers.)

Which of the following programs can be used to determine the routing path to a given destination?

Which command displays a list of allbackground tasks running in the current shell? (Specify ONLY the command without any path or parameters.)

Which of the following are init systems used within Linux systems? (Choose THREE correct answers.)

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

Which of the following statements is valid in the file /etc/nsswitch.conf?

Which of the following commands can be used to display the inode number of a given file?

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

What is the purpose of a screen reader?

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

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)

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

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.)

The script, script.sh, consists of the following lines:

#!/bin/bash

echo $2 $1

Which output will appear if the command, ./script.sh test1 test2, is entered?

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

Which function key is used to start Safe Mode in Windows NT?

Which of the following lines are valid in the file /etc/hosts? (Choose TWO correct answers.)

What output will the command seq 10 produce?

What is the command to delete the default gateway from the system IP routing table? (Choose TWO correct answers.)

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)

What is the name of the main configuration file for GNU GRUB? (Specify the file name only without any path.)

Which option to the yum command will update the entiresystem? (Specify ONLY the option name without any additional parameters.)

Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/creation time and does NOT generate them as needed? (Choose TWO correct answers.)

Which command will display messages from the kernel that were output during the normal boot sequence?

Which file specifies the user accounts that can NOT submit jobs via at or batch? (Provide the full path and filename)