Linux1 chapter 15

Which command will display the group(s) a user belongs to?

• id

• whoami

• groups

• listgroups

The /etc/group file follows what structure?

• group_name:password_placeholder:GID:user_list

• group_name:GID:user_list

• group_name:user_list:GID:password_placeholder

• group_name:GID:password_placeholder:user_list

A user can belong to...

• Only groups with a GID over 500

• Multiple groups, regardless of GID

Usernames cannot be the same as group names.

• True

• False

Which user can view the /etc/shadow file?

• The root user

• No users

• All users

• Any member of the password group

Which command will display the users that are currently logged into the system?

• whoami

• who

• about

• id

Sudo privileges can be used to specify which user can use the sudo command to execute commands as other users.
True or False?

• True

• False

Which command can be used to view the /etc/passwd file entries?

• uptime

• getent

• uppasswd

• getpasswd

All Linux systems allow administrators to log in as root.
True or False?

• True

• False

What is the default user for the su command?

• All users

• The root user

• The most recently created user

• Any member of the password group