Introduction to Linux I – Chapter 18 Exam Answers 2019 + PDF file

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  1. Which of the following are considered replacements for the traditional init process? (choose two)
    • Sysinit
    • Upstart
    • Starter
    • Systemd
  2. Which runlevel number defines multi-user with no networking services?
    • 2
    • 0
    • 5
    • 1
    • 6
    • 4
    • 3
  3. Instead of using traditional runlevels, Systemd uses:
    • Targets
    • Variables
    • States
    • Functions
  4. Which of the following commands will allow you to change the system runlevel, on a system with traditional init? (choose two)
    • telinit 
    • systemctl
    • init
    • chginit
  5. Which of the following commands will allow you to change the system to another runlevel, on a system with Systemd? (choose two)
    • telinit
    • systemctl
    • chginit
    • init
  6. Which of the following commands can be used to reboot the system? (choose two)
    • shutdown -r
    • shutdown
    • halt
    • reboot
  7. Which of the following commands can be used to halt the system? (choose two)
    • shutdown
    • reboot
    • halt
    • poweroff
  8. Which runlevel number is defined as “user-definable”?
    • 3
    • 6
    • 0
    • 2
    • 5
    • 1
    • 4
  9. Which runlevel number defines rebooting the system?
    • 1
    • 2
    • 3
    • 6
    • 4
    • 0
    • 5
  10. Which runlevel number defines multi-user with networking services and no GUI?
    • 4
    • 3
    • 6
    • 2
    • 1
    • 0
    • 5
  11. Which runlevel number defines multi-user with GUI?
    • 1
    • 6
    • 4
    • 0
    • 2
    • 3
    • 5
  12. Which runlevel number defines halting the system?
    • 0
    • 3
    • 2
    • 6
    • 4
    • 5
    • 1
  13. Which command will display both the current runlevel and the previous runlevel?
    • run
    • level
    • rl
    • runlevel
  14. On a Ubuntu system, what variable defines the default runlevel in the /etc/init/rc-sysinit.conf file?
    • RUNLEVEL
    • DEFAULT
    • DEFAULT_RUNLEVEL
    • RUN
  15. For traditional init, the _____ file is where the initial default runlevel is defined.
    • /etc/initdefault
    • /etc/init
    • /etc/inittab
    • /etc/sysinit
  16. What option to the who command will display the current runlevel?
    • -t
    • -r
    • -a
    • -s
  17. Where are the scripts used to manage the init process located?
    • /etc/rc.init
    • /rc.d/init.d
    • /etc/rc.d/init.d
    • /etc/init/rc.d
  18. Which of the following can be used to restart the HTTP service? (choose two)
    • /etc/init.d/httpd restart
    • service httpd restart
    • service httpd re start
    • service https restart
  19. The same set of services are started or stopped at different runlevels.
    True or False?

    • True
    • False
  20. Which directories exist in the /etc/rc.d directory?
    • d. rc0.d, rc1.d, rc2.d, rc3.d, rc4.d, rc5.d and rc6.d
    • c. rc0d, rc1d, rc2d, rc3d, rc4d and rc5d
    • rc0.d, rc2.d, rc4.d, and rc6.d
    • b. rc0, rc1, rc2, rc3, rc4, rc5 and rc6
  21. Which of the following commands will have the httpd service start at runlevel 5?
    • ln -s /etc/init.d/httpd /etc/rc.d/rc5.d/S85httd
    • cp /etc/init.d/httpd /etc/init.d/rc5.d
    • ln -s /etc/init.d/httpd /etc/rc.d/rc5.d/K85httpd
    • cp /etc/init.d/httpd /etc/rc.d
  22. Which command is used to view the services that are set to start or stop automatically?
    • lsconfig
    • chkconfig
    • initconfig
    • config
  23. Which of the following is used to turn off the atd service at runlevels 2 and 4?
    • chkconfig –off 24 atd
    • chkconfig –level 24 atd disable
    • chkconfig –level 24 atd off
    • chkconfig –level 24 atd auto off
  24. Which is the default runlevel for Debian based Linux systems?
    • 3
    • 5
    • 4
    • 2
  25. Which of the following is used to define the start of the Apache web server for runlevels 2-4 in the /etc/init.d/apache2.conf file?
    • start on runlevel [2-4]
    • start on run_level [234]
    • enable runlevel [234]
    • start on runlevel [234]
  26. Which of the following commands is used as a traditional replacement for the init process?
    • iostat
    • ioctl
    • systemctl
    • sudo
  27. Which of the following commands is used to view the status of all services?
    • systemctl –a
    • systemctl –l
    • systemctl -l
    • systemctl –all
  28. Which of the following is not a Linux boot system?
    • bootup
    • systemd
    • upstart
    • init

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