16. The following command can be used to set default permissions of files and folders.

a) chmod
b) unmask
c) sudo
d) chown

17. There are two types of links in Linux. They are:
a) Hard, symbolic
b) Linux does not use links; links are shortcuts and are used in Windows.
c) Absolute, relative
d) Direct, indirect

18. The following command will send the output of the ls -R command to a file named f1.txt overwriting its existing content.
a) Overwrite f1.txt with ls –R
b) ls –R > f1.txt
c) ls –R | f1.txt
d) ls –R >> f1.txt

19. A file system refers to the “way” the disk is formatted and how data is stored on a disk.
a) True
b) False

20. The following command will remove the content of the /tmp folder but the folder itself.
a) rm –rd /tmp/*
b) rm –rf /tmp/?
c) Rm –rf /tmp/content
d) rm –rf /tmp

21. The following command would remove the write permission from the owner and remove the read permission from the group and others.
a) umask u-w go-r filename
b) chmod u-w,go-r filename
c) chmod u-w go-r filename
d) umask u-w,go-r filename

22. The rm command by default does not work with directories; it can only remove files by default.
a) True
b) False

16. b) unmask

17. a) Hard, symbolic
18. b) ls –R > f1.txt
19. a) True
20. a) rm –rd /tmp/*
21. c) chmod u-w go-r filename
22. a) True