Which command is used to display the active routing table in Junos OS?

The command used to display the active routing table in Junos OS is indeed "show route." This command provides a comprehensive view of the routes that have been learned and are currently utilized by the device to forward traffic. When you execute this command in operational mode, it presents the information along with the associated next-hop addresses and route preferences, which is crucial for troubleshooting and understanding the network's routing behavior.

The other options, while they may seem similar, do not apply to Junos OS. "display routing-table" is more associated with other operating systems, particularly those based on Cisco IOS. "show ip route" follows Cisco syntax and is not applicable in Junos OS, which has its own unique command structure. Finally, "list routes" is also not a valid command in Junos for displaying the routing table, as it does not conform to the established command standard in Junos OS.