Deck 7: Managing Users and Groups

Question 1

Everyone has permission to view the /etc/passwd file's contents.

Answer 1

True

Question 2

Regular users typically have a UID less than 100.

Answer 2

False

Question 3

The first thing you must do after creating a user is set the password.

Answer 3

True

Question 4

The newgrp command opens a new shell even if the command fails.

Question 5

By default, new users are forced to change their passwords.

Question 6

Which file contains user account information?

A) /etc/shadow
B) / etc/default/ useradd
C) /etc/passwd
D) /etc/login.defs

Question 7

Each field in the /etc/passwd file is separated by ____.

A) periods
B) colons
C) semicolons
D) spaces

Question 8

OpenSUSE recommends using ____ for the username.

A) all uppercase letters
B) all lowercase letters
C) a combination of two symbols, uppercase and lowercase letters
D) a combination of uppercase and lowercase letters

Question 9

The root UID is ____.

A) zero
B) one
C) 100
D) 1000

Question 10

Which file is a configuration file containing passwords and password expiration information for all user accounts?

A) /etc/shadow
B) / etc/default/ useradd
C) /etc/passwd
D) /etc/login.defs

Question 11

What value in the /etc/shadow file's password expiration field means the user's password never expires?

A) 0
B) 1
C) 999
D) 99999

Question 12

Which command allows you to find out which group has a GID of 100?

A) more /etc/group | grep 100
B) less /etc/group | grep 100
C) id gid=100(users)
D) id uid=100(users)

Question 13

The /etc/login.defs file is a(n) ____ file.

A) binary
B) text
C) encrypted
D) hidden

Question 14

Users can change their own passwords by typing passwd with ____ to specify the username.

A) a less than symbol
B) two spaces
C) no argument
D) their UID

Question 15

In openSUSE, the default skeleton directory is ____.

A) /bin/etc/skel
B) /etc/skel
C) /bin/skel
D) /etc/login/skel

Question 16

Which command is used to create user accounts and update default information for new users?

A) userdel
B) newgrp
C) chage
D) useradd

Question 17

Which command is used to list and modify password expiration information for user accounts?

A) userupd
B) change
C) chage
D) useradd

Question 18

What is the effect of changing the date the password was last changed to zero?

A) It disables the account.
B) It forces the user to change the password at the next login.
C) It sets the password to never expire.
D) It sets the password to expire in 24 hours.

Question 19

If the chage command is used without options, it is in ____ mode.

A) default
B) terminal
C) interactive
D) inactive

Question 20

When using the chage command, how do you set the minimum password age?

A) Type [7] and press Enter.
B) Type 7 and press Enter.
C) Type 3 and press Enter.
D) Type 90 and press Enter.

Question 21

When using the chage command, how do you set the maximum password age?

A) Type [7] and press Enter.
B) Type 7 and press Enter.
C) Type 3 and press Enter.
D) Type 90 and press Enter.

Question 22

In Linux, the group database configuration file is ____.

A) /etc/group
B) /bin/group
C) /etc/bin/group
D) /bin/etc/group

Question 23

What is the OpenSUSE GUI utility for adding, editing, and removing users and groups?

A) GNOME
B) VIM
C) YaST
D) Blowfish

Question 24

What is Blowfish?

A) A password encryption scheme
B) A password compression utility
C) A password checker
D) A GUI utility to define users

Question 25

When creating a new user using the GUI utility, the default expiration date is in the form of ____.

A) MMDDYYYY
B) DD-MM-YYYY
C) DDMM-YYYY
D) YYYY-MM-DD

Question 26

____________________ is the process of verifying someone's identity by checking his or her username and password against a central user database.

Question 27

The ____________________ is a unique number representing the username.

Question 28

The ____________________ is a unique number that corresponds to each group.

Question 29

The ____________________ directory contains files copied automatically to each new user's home directory.

Question 30

The ____________________ group is " users," which has the GID 100.

Question 31

Match each statement with an item

-Command option used to remove a specified member from the group account.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 32

Match each statement with an item

-Command option used to specify the user's default login shell.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 33

Match each statement with an item

-Command option used to allow assignment of a duplicate GID.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 34

Match each statement with an item

-Command option used to change the user's login name.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 35

Match each statement with an item

-Command option used to force the GID to what's entered at the command line.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 36

Match each statement with an item

-Command option used to unlock specific user accounts.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 37

Match each statement with an item

-Command option used to add a home directory for a new user.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 38

Match each statement with an item

-Command option used to display all password expiration information for the specified user account.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 39

Match each statement with an item

-Command option used to change the number of days the password is valid for the specified user account.

A) useradd -m
B) usermod -l name
C) chage -m
D) chage -l
E) groupadd -o
F) groupadd -g
G) useradd -s
H) usermod -U
I) groupmod -R

Question 40

What is contained in the /etc/passwd file's username field?

Question 41

Where is user information stored?

Question 42

How can you view the contents of your /etc/login.defs file or / etc/default/ useradd file?

Question 43

What happens to a user's files when the user is deleted?

Question 44

How are groups helpful?

Question 45

Describe the YaST User and Group Management utility.

Question 46

Describe how the YaST User and Group Management utility Details tab is used.

Question 47

Describe how the YaST User and Group Management utility Plugins tab is used.

Question 48

Describe how the YaST User and Group Management utility Defaults for New Users tab is used.

Question 49

Describe how the YaST User and Group Management utility Authentication Settings tab is used.