Linux Module 4

Question 1

A symbolic link is also known as a soft link and is depicted by an @ symbol appearing at the beginning of the filename when viewed using the ls -l command. True of False?

Answer 1

False

Question 2

What was created to define a standard directory structure and common location for Linux?

Answer 2

FHS

Question 3

There is no real difference between the ‘S’ and the ‘s’ special permissions when displayed using the ls -l command. One just means it is on a file and other that it is on a directory. True of False?

Answer 3

False

Question 4

The default permissions given by the system prior to analyzing the umask are known as what for directories, and referred to as what for files?

Answer 4

rwxrwxrwx and rw-rw-rw-

Question 5

What must a user do to run cp or mv interactively and be asked if she wants to overwrite an existing file?

Answer 5

Just type cp or mv as they run in interactive mode by default.

Question 6

The root user user utilizes the chgrp command to give ownership of a file to another user. What must the root use do to regain ownership of the file?

Answer 6

chown user1:root file1

Bitch Im your Uh -XxXtenTacion

Question 7

After typing the ls -F command, you see the following line in the output:

-rw-r-xr- 1user1 root

What does this mean?

Answer 7

User 1 has read and write permission, members of the group have read and execute permissions, and all other have read permissions to the file.

Question 8

After typing the command umask731 the permissions on all subsequently created files and directories will be effected. In this case, what will permissions on all new files be?

Answer 8

• • -r–rw

Question 9

You noticed a file in your home directory that has a + symbol appended to the mode. What does this indicate?

Answer 9

Additional entries exist within the ACL of that file that can be viewd using the getfacl command.

Question 10

When you change the data in a file that is hard-linked to three others:

Answer 10

The data in the file you modified as well as the data in all hard-linked files are modified, as they all share the same data and all have the same inode and file size.

Question 11

The command chmod317file1 would produce which of the following lines in the ls command?

Answer 11

–wx–xrwx 1 user root ‘date’

Question 12

Which of the following commands will change the user ownership and group ownership of file1 to user 1 and root respectively?

Answer 12

chown user1:root file1

Question 13

What does the /var directory contain?

Answer 13

spools and log files

Question 14

What does the mv command do?

Answer 14

It moves a file.

Question 15

A file has the following permissions r—-x-w-. The command chmod 143 would have the same effect as the command:

Answer 15

chmod u=x,g=r,o=wx file1

Question 16

The which command does what?

Answer 16

Searches for a file only in directories that are in the PATH variable.

Question 17

Hard links need to reside on the same filesystem as the target, whereas symblic links need to be on the same filesystem as the target. True of False?

Answer 17

True

Question 18

What does the SGID special permission do when applied to a directory?

Answer 18

causes all new files created in the directory to have the same group membership as the directory, and not the entity that created them.

Question 19

Which command do you use to rename files and directories?

Answer 19

mv

Question 20

What are the three standard Linux permissions?

Answer 20

Execute, read ,write

Question 21

Only the root user can modify a file that has the immutable attribute set. True or False?

Answer 21

False