NDG Linux Essentials 2.21 | Creating Users and Groups Module 16 | Chapter 16 Exam Answers Full 100% 2023
These are questions of Cisco NDG Linux Essentials 2.21 Creating Users and Groups Chapter 16 Exam Answers full 100% with the latest version and updated in 2023. All answers are verified by experts with explanations.
-
UIDs 1-499 are usually reserved for what kind of users?
- Are not used for user accounts, but for group accounts
- Remote log-in accounts
- System accounts, such as server processes
- Log-in (human) users
-
If a user is deleted, the files and directories that the user owned…
- …will have no UID owner.
- …will have no user owner.
- …will show a UID as the owner, but not user name.
- …are deleted as well.
-
Which of the following options for the
useradd
command allows root to specify the UID to be associated with the account?-G
-g
-u
-M
-
Which of the following options for the
useradd
command allows root to specify supplementary groups the user will be a member of?-g
-U
-u
-G
-
On a system that does not use UPG, the
useradd
command will also create a user group. For example, user bob, group bob.True or False?- True
- False
-
Which of the following commands will add the group
extra
to the user bob’s secondary groups in addition tobob
‘s current secondary groups?usermod -ag bob extra
usermod -aG extra bob
usermod -G extra bob
usermod -a extra bob
-
Which option for the
usermod
command can be used to specify a user’s group ID (either primary or secondary)?(choose two)-S
-G
-g
-s
-
For non-root users, the
passwd
command can only be used to change the password of the user running the command. True or False?- True
- False
-
The
groupmod
command can be used to change a group name. True or False?- True
- False
-
The
groupmod
command can be used to change a group GID. True or False?- True
- False
-
The
groupmod
command can be used to add users to a group. True or False?- True
- False
-
Which of the following commands can be used to modify a group?
addgroup
groupmod
groupadd
modgroup
-
Which command can be used to determine a user’s most recent log in?
history
shell
login
last
-
Which of the following files contains encrypted user password information?
- /etc/usr
- /etc/group
- /etc/passwd
- /etc/shadow
-
Which of the following files contains user IDs?
- /etc/passwd
- /etc/usr
- /etc/shadow
- /etc/group
-
Which of the following files does the
groupadd
command use to determine the new GID when a GID isn’t specified?- /etc/usr
- /etc/group
- /etc/shadow
- /etc/passwd
-
Which of the following commands, run as root, will prevent the user
bob
from logging in?usermod -D bob
usermod -l bob
usermod -d bob
usermod -L bob
-
What directory contains a user’s home directory?
- /home
- /
- /rootfs
- /user
-
GIDs under 500 (or 1000) are usually reserved for what kind of groups?
- Administrators
- System use
- User private groups (UPG)
- Are not used for groups, but for user accounts
-
If a user is deleted, the files and directories that the user owned…
- …will have no UID owner.
- …will have no user owner.
- …are deleted as well.
- …may be important for others in the organization
-
Which of the following options for the
useradd
command allows you to use a different primary group then the default?-g
-U
-u
-G
-
On a system that uses UPG, the UID must not be the same as the GID.. True or False?
- True
- False
-
The
usermod
command can be used to unlock a users account with the following option.-s
-U
-u
-f
-
Which of the following options for the
useradd
command allows you to use a different login shell than the default?-s
-U
-g
-u
-
Which of the following commands will add the group
extra
to the userjane’
s secondary groups in addition to jane’s current secondary groups?usermod -G extra jane
usermod -ag jane extra
usermod -a extra jane
usermod -aG extra jane
-
Which option for the
usermod
command can be used to specify a user’s primary group ID?-G
-s
-g
-S
-
For root users, the
passwd
command can only be used to change the password of the user running the command. True or False?- True
- False
-
The
userdel -r
command will…- …delete the user account, but leave the user’s files by default.
- …will prompt before deleting each file owned by a user.
- …automatically delete a user and the user’s home directory and mail spool and their contents.
- …automatically delete a user and all the files owned by that user.
-
The
groupmod
command can be used to change a group name. True or False?- True
- False
-
The
groupmod
command cannot be used to change a group GID. True or False?- True
- False
-
The
groupdel
command can be used to delete primary groups. True or False?- True
- False
-
Which of the following commands can be used to modify a user?
usermod
adduser
useradd
moduser
-
Which command can be used to determine a user’s most recent log in?
login
last
shell
history
-
The /etc/passwd file contains encrypted user password information. True or False? True or False?
- False
- True
-
Which of the following files contains group IDs?
- /etc/group
- /etc/shadow
- /etc/passwd
- /etc/usr
-
Which command allows you to view or change some of the default values used by the
useradd
command?useradd -D
modvalue
useradd -f
useradd -r
-
Which of the following commands, run as root, will prevent the user
jane
from logging in?usermod -d jane
usermod -D jane
usermod -L jane
usermod -l jane
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