Linux Essentials 2.0 Chapter 17 Exam Answers

Last Updated on May 20, 2021 by Admin

NDG Linux Essentials 2.0 Chapter 17 Exam Answers

1. Which of the following commands set “other” permissions on file to r-x?

   • chmod o-r-w file
   • chmod o+rx file
   • chmod o=rx file
   • chmod o=r+x file

2. Which of the following commands sets “other” permissions on file to r-x?

   • chmod 775 file
   • chmod 776 file
   • chmod 777 file
   • chmod 774 file

3. Only one set (user, group, other) of permission can be changed at once using the symbolic method.

   True or False?

   • True
   • False

4. Which of the following are methods for setting permissions using the chmod command?

   (choose two)

   • letter
   • primary
   • symbolic
   • octal

5. The chown command can be used to change the owner and group of a file.

   True or False?

   • True
   • False

6. The user sysadmin will be able to read a file because they own it.

   True or False?

   • True
   • False

7. The user sysadmin will be able to change the permissions of a file because they own it.

   True or False?

   • True
   • False

8. Octal notation uses the following values for the permissions granted:

   • r = 7, w = 5, x = 0
   • r = 3, w = 2, x = 1
   • r = 4, w = 2, x = 0
   • r = 4, w = 2, x = 1

9. Which of the following permissions would allow all users to add, view, and delete files in a directory?

   • 750
   • 775
   • 666
   • 777

10. A user cannot delete a file if they do not own it.

    True or False?

    • True
    • False

11. The “execute” permission on a directory allows you to:

    (choose three)

    • Along with write permission to successfully delete the directory
    • Along with read permission to successfully perform ls -l
    • Along with write permission to successfully create new files
    • Change to that directory or use it as part of a path

12. The “execute” permission on a file allows you to:

    • Move the file to a new directory
    • Delete the file
    • Run the file as a script
    • This permission isn’t meaningful for text files.

13. The chgrp command can be used on a file by:

    • A user that belongs to the files current group
    • Only the file owner
    • The file owner and root
    • Only root

14. The chown command can be used to change the user owner on a file by:

    • The file owner
    • Only root
    • The file owner and root
    • A user that belongs to the files current group

15. The chmod command can be used on a file by:

    • Only root
    • A user that belongs to the files current group
    • The file owner
    • The file owner and root

16. The “execute” permission is never set on files by default.

    True or False?

    • True
    • False

17. Which of the following chown commands will change the myFile user ownership to the user sam and the group ownership to administrators?

    (choose two)

    • chown sam administrators myFile
    • chown sam.administrators myFile
    • chown sam:administrators myFile
    • chown sam+administrators myFile

18. The chown command permits changing group ownership done by root only.

    True or False?

    • True
    • False

19. The user owner of a file will always have the same or higher permissions as “other”.

    True or False?

    • True
    • False

20. Which of the following commands will list hidden files as well as their ownership?

    • ls -la
    • ls -l
    • ls -a
    • ls -z