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Usernames cannot be the same as group names.(True or False?)
Correct answer(s):
- False
What would an account with the UID 376 typically be used for?
Correct answer(s):
- System service access.
Traditional UNIX systems allowed users to belong to how many groups?
Correct answer(s):
- 16
Which command is used to display only the user’s primary group?
Correct answer(s):
- id -g
File permissions cannot be edited by the root user. (True or False?)
Correct answer(s):
- False
Which command would allow a user to execute commands as root?
Correct answer(s):
- sudo
What is the default user for the su command?
Correct answer(s):
- The root user
All Linux systems allow administrators to log in as root. (True or False?)
Correct answer(s):
- False
Which command can be used to view the /etc/passwd file entries?
Correct answer(s):
- getent
Which of the following commands will display how long the system has been running since the last boot?(choose two)
Correct answer(s):
- uptime
- w
The /etc/shadow file contains plain-text passwords. (True or False?)
Correct answer(s):
- False
In distributions that do not allow the root user to login directly or via the su command, the installation process automatically configures one user account to be able to use the sudo command to execute commands as if they were executed by the root user. (True or False?)
Correct answer(s):
- True
True
Correct answer(s):
- True
A user can belong to…
Correct answer(s):
- At least 16 groups
A GID is associated with a group name. (True or False?)
Correct answer(s):
- True
The /etc/group file follows what structure?
Correct answer(s):
- group_name:password_placehoder:GID:user_list
Which of the following commands will display the groups that the user bob belongs to?
Correct answer(s):
- id bob
Which of the following commands will display the group(s) a user belongs to?
Correct answer(s):
- id
The Sudo command allows regular users to…
Correct answer(s):
- …execute commands as another user.
Which command will display the users that are currently logged in to the system?
Correct answer(s):
- who