What command would you use to view active connections on a MikroTik router?

To view active connections on a MikroTik router, the command /ip conntrack print is the most appropriate choice. This command specifically accesses the connection tracking functionality of the router, which logs and manages the state of network connections passing through the router.

When you run this command, it provides detailed information about all the connections that are currently being tracked, including details such as the source and destination IP addresses, ports, protocol types, and connection states. This is crucial for network administrators who need to monitor network activities, diagnose issues, or apply firewall rules effectively based on active connections.

The other choices do not serve the same purpose effectively. For instance, while /ip firewall connection print may seem related, it is not a valid command in MikroTik's RouterOS. The /ip active connection show option does not exist in the command set. Lastly, /ip firewall list active is also not a recognized command in MikroTik RouterOS. Thus, /ip conntrack print is the correct command for viewing active connections.