Intro to Linux - Study Guide

Study Guide 1. Which kill signal terminates a process by taking the process information in memory and saving it to a file called core on the hard disk in the current working directory? - SIGQUIT 2. Where are scheduled commands stored on Ubuntu Linux systems? - /var/spool/cron/atjobs 3. Emily accidentally created a new user account on the wrong server. Which of the following commands could she use to delete the account she created? (Choose all that apply.) - deluser - userdel 4. The System Log Daemon, rsyslogd, creates a socket for other system processes to write to. What is the path to this socket? - /dev/log 5. Which of the following commands can be used to remove a group from a Linux system? (Choose all that apply.) - delgroup - groupdel 6. Which of the following is a special group that provides its members with the ability to run the su and sudo commands? - wheel 7. Which of the following is the log file where Dandified YUM writes its log entries? - dnf.rpm.log 8. A system administrator wants to schedule a task to run at 11 pm, but knows that she will not be in the office at that time. Which of the following commands can she use to schedule this task to run that night while she is at home? - at 9. Which of the following commands can be used to set the default printer for all users on a Linux system where printer1 is the name of the printer? - lpoptions -d printer1 10. Which of the following is the highest value that can be set for the nice value which would result in a greater chance of a lower priority? - 19 11. Which of the following is the first field of the /etc/passwd file? - username 12. You have started a job running in the background that you want to now bring to the front so that you can watch it execute. Which of the following commands can be used to display the job’s output to the terminal? - fg 13. Which of the following commands will send a process’s resources to /dev/null to kill the process for process ID 1357? - kill -9 1357 14. Which of the following options can be used with the usermod command to change the description of the user account that is stored in the GECOS field? - -c 15. Which of the following will show account aging information for a user such as the date of the last password change, when the password expires, and the number of days of warning before the password expires? - chage -l jsmith 16. What option can be used with thepscommand to display an entire list of processes across all terminals, including daemons? - -e 17. While the top command is running, what key can be pressed to change the nice value of a process? - R 18. Which of the following entries could be added to the rsyslog.conf configuration file to have all syslog messages displayed to console 10? - ./dev/tty10 19. Which of the following files stores information about failed logins on a Linux system? - /var/log/btmp 20. What is the path to where the journald.conf file is located? - /etc/systemd/journald.conf 21. A system administrator wants to allow most users to be able to run cron jobs, but wants to specifically prevent a couple of users from doing so. Which of the following files could the administrator edit to disallow these users from creating cron jobs? - /etc/cron.deny 22. Which of the following commands can be used to set the number of days until user account jsmith with an expired password is disabled? - usermod -f 15 jsmith 23. Which of the following states describe a process that is waiting for a parent process to release its PID? - Zombie 24. Which of the following commands can you use to send a print job to printer1? (Choose all that apply.) - lp -d printer1 mydocument.txt - lpr -P printer1 mydocument.txt 25. Which of the following commands will display the print jobs in the print queue for printer1 only? - lpstat -o printer1