Linux Essentials – Chapter 16 Exam Answers 2019 + PDF file

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  1. The /tmp directory is a temporary directory and will not exist on a system at all times.
    True or False?

    • True
    • False*
  2. The /var directory has files that change over time.
    True or False?

    • True*
    • False
  3. The “sticky bit” permission…
    • …prevents others from overwriting files they don’t own in common directories.
    • …changes the group ownership of existing files in a directory.
    • …prevents others from removing files they don’t own from a common directory.*
    • …sets the group ownership of any new file created in a directory.
  4. Which of the following commands will set the “sticky bit” on /shared ?
    • chmod 4777 /shared
    • chmod 1777 /shared*
    • chmod 2777 /shared
    • chmod 7777 /shared
  5. The “setuid” permission…
    • …allows files in a directory to be manipulated as by the directory owner.
    • …reports the output of a script to the owner.
    • …allows a command to be run as the file owner.*
    • …prevents the owner of a file from being changed.
  6. Which of the following commands will set setuid for /usr/bin/program?
    • None of the above
    • chmod 2755 /usr/bin/program
    • chmod 1755 /usr/bin/program
    • chmod 4755 /usr/bin/program*
  7. The setgid permission… (choose two)
    • …allows files created in a directory to be owned by the group that owns the directory.*
    • …can only be set on files.
    • …allows a command to be run as the group owner of the file.*
    • …prevents the group owner of a file from being changed.
  8. Which of the following commands will set setgid on /shared ?
    • None of the above
    • chmod 4777 /shared
    • chmod 1777 /shared
    • chmod 2777 /shared*
  9. Setting setgid on a directory…
    • …will allow scripts in the directory to be executed as the group owner of the directory.
    • …will set the group owner of all files created in the directory to the group owner of the directory.*
    • …does nothing.
    • …is not allowed by the system.
  10. Deleting a source file will break an associated hard link.True or False?
    • True
    • False*
  11. A source and a hard link must be part of the same filesystem.True or False?
    • True*
    • False
  12. Deleting a source file will break an associated symbolic link.True or False?
    • True*
    • False
  13. A source file and a symbolic link must be part of the same file system.True or False?
    • True
    • False*
  14. Which of the following commands would create a hard link, link to file?
    • ln file link*
    • ln -s link file
    • ln -s file link
    • ln link file
  15. Which of the following commands would create a symbolic link, link to file?
    • ln -s link file
    • ln file link
    • ln -s file link*
    • ln link file

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