Ch11 Managing Processes Exam

Ch11 Managing Processes Exam

1. A popular program for monitoring running processes in real-time is:

   • watcher
   • ghost
   • mon
   • top

2. A signal is:

   • A technique to send data to a process
   • A command argument
   • A technique to tell a process to take some sort of action
   • A command option

3. If you want a background process to keep running after log out, you can use:

   • nofg
   • nohup
   • bg
   • nokill

4. In order to run a command called cmd1 in the background, you would type:

   • cmd1&
   • start -b cmd1
   • cmd1@
   • bg cmd1

5. Placing a ___ character at the end of the command line will put the command in the background.

   • B
   • !
   • &
   • ?

6. The uptime command prints a statistic representing the system load over what three time spans?

   (choose three)

   • Last minute
   • Last thirty minutes
   • Last fifteen minutes
   • Last ten minutes
   • Last hour
   • Last five minutes

7. The _____ command will list the commands that are running in your terminal.

   • proc
   • ps
   • ls
   • list

8. The key press combination that will request a process to stop is:

   • CTRL+D
   • CTRL+C
   • CTRL+Z
   • CTRL+P

9. The key press combination that will request a running process terminate:

   • CTRL+P
   • CTRL+D
   • CTRL+Z
   • CTRL+C

10. The main advantage of running a process in the background is:

    • The process will automatically run at a low priority
    • You can be assured that the process will not terminate early
    • The process will be logged
    • You can continue to use the shell that started the process

11. To change the niceness value of an existing process, you can use the _____ command.

    • renice
    • reset
    • set
    • nice

12. To execute a command called cmd1 as a foreground process, you would type:

    • cmd1
    • fg cmd1
    • foreground cmd1
    • cmd1 &

13. To execute a command with the default priority, which value do you pass to the nice command?

    • -20
    • 19
    • 0
    • 20

14. To execute a command with the highest possible priority, which value do you pass to the nice command?

    • 0
    • 19
    • 20
    • -20

15. To execute a command with the lowest possible priority, which value do you pass to the nice command?

    • 19
    • 0
    • 20
    • -20

16. To see how long the system has been running, you can use the _____ command.

    • uptime
    • ps
    • nice
    • free

17. To see the list of background processes that you have started in your shell, you can run:

    • process
    • list
    • jobs
    • work

18. To send a paused process to the background, use the _____ command.

    • fg
    • jobs
    • ps
    • bg

19. To send a signal to a set of processes with the same name, you can run:

    • grpkill
    • allkill
    • killall
    • sigkill

20. To set a priority value lower than 0, you must log in as which user?

    • No user can specify a priority lower than 0
    • Any user account
    • The root user
    • The admin user

21. To view all processes on the system, you can execute:

    • ps
    • ps -e
    • ps --all
    • ps -f

22. To view statistics on memory availability, you can use:

    • stat
    • uname
    • free
    • mem

23. To view system memory usage, you can use the _____ command.

    • uptime
    • nice
    • free
    • ps

24. Using the kill command always terminates processes.

    True or False?

    • True
    • False

25. What character do you place between commands to execute multiple commands on a single command line?

    • ;
    • ~
    • &
    • :

26. What command can be used as a prefix to another command to run it at an altered priority?

    • nice
    • pri
    • low
    • chpr

27. What command can be used to alter the priority of a running process?

    • relow
    • renice
    • repri
    • chpr

28. What option to the kill command will list the signals for the system?

    (choose one)

    • -9
    • -list
    • -l
    • -r

29. Which of the following is not a valid way to send the force kill signal to a process?

    • kill -FORCE PID
    • kill -SIGKILL PID
    • kill -KILL PID
    • kill -9 PID

30. Which command will find all processes owned by user fred?

    • pgrep -i | fred
    • ps fred | grep -1 process
    • pgrep -u fred -l
    • ps -a | user fred

31. The watch command’s default interval is?

    • 10 minutes
    • 12 tics
    • 2 seconds
    • none, the user must specify time

32. The screen command can detach and re-attach terminal sessions.

    True or False?

    • True
    • False

33. The proper command to list current tmux sessions is?

    • tmux -a
    • tmux list-sessions
    • tmux -ls 
    • tmux -l