Displays a list of users who are logged on to hosts on the local network.

Displays a list of users who are logged on to hosts on the local network.

• A. rusers
• B. rwho
• C. who
• D. finger

Answer: (B)

The concept being tested is how to discover who is currently logged into machines across the local network by asking the remote hosts for their active sessions. The rwho command is built to do exactly that: it queries each host on the local network (via the rwho/rwhod service) and aggregates the list of users who are logged in, along with their terminals and login times. This makes it the best choice for seeing a network-wide view of active users, rather than just the local machine. Why this works better here than the other options: the basic who command shows only users on the current host, not on other machines. The finger command is for obtaining information about individual users and is not suited to listing all active sessions across multiple hosts. The rusers command can also display remote users, but rwho is the classic, straightforward tool specifically described as showing who is logged on to hosts on the local network, which is why it’s the most appropriate answer.

The concept being tested is how to discover who is currently logged into machines across the local network by asking the remote hosts for their active sessions. The rwho command is built to do exactly that: it queries each host on the local network (via the rwho/rwhod service) and aggregates the list of users who are logged in, along with their terminals and login times. This makes it the best choice for seeing a network-wide view of active users, rather than just the local machine.

Why this works better here than the other options: the basic who command shows only users on the current host, not on other machines. The finger command is for obtaining information about individual users and is not suited to listing all active sessions across multiple hosts. The rusers command can also display remote users, but rwho is the classic, straightforward tool specifically described as showing who is logged on to hosts on the local network, which is why it’s the most appropriate answer.