Module 4 Review Quiz

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 or False?
a. True
b. False

Answer 1

b. False

Question 2

What was created to define a standard directory structure and common file location for Linux?
a. FSH
b. X.500
c. FHS
d. root directory

Answer 2

c. FHS

Question 3

There is no real difference between the “S” and “s” special permissions when displayed using the ls –l command. One just means it is on a file, and the other that it is on a directory. True or False?
a. True
b. False

Answer 3

b. False

Question 4

The default permissions given by the system prior to analyzing the umask are ___________for directories and __________ for files.

a. rw-rw-rw- and rw-rw-rw-

b. rw-rw-rw- and r–r–r–

c. rw-rw-rw- and rwxrwxrwx

d. rwxrwxrwx and rw-rw-rw-

e. rwxrw-rw- and rwx-rw-rw-

Answer 4

d. rwxrwxrwx and rw-rw-rw-

Question 5

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

a. There is no choice as the new file will overwrite the old one by default.

b. Type interactive cp or interactive mv.

c. Type cp -i or mv-i.

d. Type cp –interactive or mv - interactive.

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

Answer 5

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

Question 6

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

a. Run chgrp again listing the root user as the new owner.

b. Nothing, because this is a one-way, one-time action.

c. Have the new owner run chgrp, and list the root user as the new owner.

d. Run chown and list the root user as the new owner.

Answer 6

a. Run chgrp again listing the root user as the new owner.

Question 7

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

-rw-r-xr– 1 user1 root 0 Apr 29 15:40 file1

What does this mean?

a. User1 has read and write, members of the root group have read and execute, and all others have read permissions to the file.

b. Members of the root group have read and write, user1 has read and execute, and all others have read permissions to the file.

c. All users have read and write, members of the root group have read and execute, and user1 has read permissions to the file.

d. User1 has read and write, all others have read and execute, and members of the root group have read permissions to the file.

Answer 7

a. User1 has read and write, members of the root group have read and execute, and all others have read permissions to the file.

Question 8

After typing the command umask 731, the permissions on all subsequently created files and directories will be effected. In this case, what will be the permissions on all new files?

a. rw-rw-rw-	
b. rwxrw-r--	
c. ---r--rw-	
d. ----wx--x

Answer 8

c. —r–rw-

Question 9

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

a. Special permissions have been set on the file.

b. The file has one or more files on the filesystem that are hard linked to it.

c. The sticky bit directory permission has been set on the file, and will remain inactive as a result.

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

Answer 9

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

Question 10

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

a. only the data in the file you modified is affected

b. only the data in the file you modified and any hard linked files in the same directory are affected

c. the data in the file you modified and the data in all hard linked files are modified because they have different inodes

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

Answer 10

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

Question 11

The command chmod 317 file1 would produce which of the following lines in the ls command?

a. –w-r–rwx 1 user1 root 0 Apr 29 15:40 file1

b. –wx–xrwx 1 user1 root 0 Apr 29 15:40 file1

c. -rwxrw-r-x 1 user1 root 0 Apr 29 15:40 file1

d. –w-rw-r-e 1 user1 root 0 Apr 29 15:40 file1

Answer 11

b. –wx–xrwx 1 user1 root 0 Apr 29 15:40 file1

Question 12

Which of the following commands will change the user ownership and group ownership of file1 to user1 and root, respectively?

a. chown user1:root file1

b. chown user1 : root file1

c. This cannot be done because user and group ownership properties of a file must be modified separately.

d. chown root:user1 file1

e. chown root : user1 file1

Answer 12

a. chown user1:root file1

Question 13

What does the /var directory contain?

a. various additional programs

b. spools and log files

c. temporary files

d. files that are architecture-independent

e. local variance devices

Answer 13

b. spools and log files

Question 14

What does the mv command do? (Choose all that apply.)

a. It makes a volume.
b. It makes a directory.
c. It moves a directory.
d. It moves a file.

Answer 14

c. It moves a directory.
d. 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 _________. (Choose all that apply.)

a. chmod u+x-r,g+r-x,o+w file1

b. chmod u=w,g=rw,o=rx file1

c. chmod u-r-w,g+r-w,o+r-x file1

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

e. chmod u+w,g+r-w,o+r-x file1

f. chmod u=rw,g=r,o=r file1

Answer 15

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

Question 16

The which command _________________.

a. can only be used to search for executables

b. searches for a file in all directories starting from the root

c. is not a valid Linux command

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

Answer 16

d. 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 symbolic links need not be on the same filesystem as the target. True or False?
a. True
b. False

Answer 17

a. True

Question 18

When applied to a directory, the SGID special permission____________________.

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

b. cannot be used, because it is applied only to files

c. allows users the ability to use more than two groups for files that they create within the directory

d. causes users to have their permissions checked before they are allowed to access files in the directory

Answer 18

a. 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?
a. cp
b. mv
c. rn
d. rename

Answer 19

b. mv

Question 20

What are the three standard Linux permissions?

a. full control, read-execute, write

b. read, write, modify

c. execute, read, write

d. read, write, examine

Answer 20

c. execute, read, write

Question 21

Given the following output from the ls command, how many files are linked with file1?

drwxr-xr-x 3 root root 4096 Apr 8 07:12 Desktop

-rw-r–r– 3 root root 282 Apr 29 22:06 file1

-rw-r–r– 1 root root 282 Apr 29 22:06 file2

-rw-r–r– 4 root root 282 Apr 29 22:06 file3

-rw-r–r– 2 root root 282 Apr 29 22:06 file4

-rw-r–r– 1 root root 282 Apr 29 22:06 file5

-rw-r–r– 1 user1 sys 282 Apr 29 22:06 file6

a. one	
b. two	
c. three	
d. four

Answer 21

b. two

Question 22

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

Answer 22

b. False