Linux Essentials – Chapter 15 Exam Answers 2019 + PDF file

1. Which of the next instructions set “different” permissions on file to r-x?
   • chmod o=r+x file
   • chmod o=rx file*
   • chmod o-r-w file
   • chmod o+rx file
2. Which of the next instructions units “different” permissions on file to r-x?
   • chmod 777 file
   • chmod 776 file
   • chmod 775 file*
   • chmod 774 file
3. Just one set (consumer, group, different) of permission could be modified directly utilizing the symbolic technique.
   True or False?
4. Which of the next are strategies for setting permissions utilizing the chmod command? (select two)
   • binary
   • symbolic*
   • letter
   • octal*
5. The chown command can be utilized to alter the proprietor and group of a file.
   True or False?
6. The chgrp command can be utilized to alter the proprietor and group of a file.
   True or False?
7. The consumer sysadmin will have the ability to learn the file as a result of they personal it.
   —-r–r– 1 sysadmin group 38270 Sep 2 18:49 file
   True or False?
8. The consumer sysadmin will have the ability to change the permissions of the file as a result of they personal it.
   —-r–r– 1 sysadmin group 38270 Sep 2 18:49 file
   True or False?
9. Octal notation makes use of the next values for the permissions granted:
   • r = 4, w = 2, x = 1*
   • r = 7, w = 5, x = 0
   • r = 3, w = 2, x = 1
   • r = 4, w = 2, x = 0
10. Which of the next permissions would permit all customers so as to add, view, and delete information in a listing?
11. A consumer can not delete a file if they don’t personal it.
    True or False?
12. The “execute” permission on a listing means that you can: (select three)
    • Change to that listing or use it as a part of a path*
    • Together with write permission to efficiently delete the listing
    • Together with learn permission to efficiently carry out ls -l*
    • Together with write permission to efficiently create new information*
13. The “execute” permission on a file means that you can:
    • Run the file as a script*
    • This permission isn’t significant for textual content information.
    • Delete the file
    • Transfer the file to a brand new listing
14. The chgrp command can be utilized on a file by:
    • Solely root
    • A consumer that belongs to the information present group
    • The file proprietor and root*
    • Solely the file proprietor
15. The chown command can be utilized to alter the consumer proprietor on a file by:
    • Solely root*
    • A consumer that belongs to the information present group
    • The file proprietor and root
    • The file proprietor
16. The chmod command can be utilized on a file by:
    • The file proprietor and root*
    • Solely root
    • A consumer that belongs to the information present group
    • The file proprietor
17. Which possibility for the chown command can be utilized to alter the proprietor of a listing and all of the information and directories beneath it?
18. The chown command will solely settle for one file at a time as an argument.
    True or False?
19. The “execute” permission isn’t set on information by default.
    True or False?
20. The consumer proprietor of a file will at all times have the identical or greater permissions as “different”.
    True or False?

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