Which command is used to view the active routing table on a Junos device?

The command used to view the active routing table on a Junos device is "show route." This command displays the current state of the routing table, including all known routes, their statuses, and their respective next hops. It provides critical information for network troubleshooting and validation of routing protocols, allowing administrators to confirm that the expected routes are present and that they are correctly configured.

The other options, while they may seem similar or related to viewing routing information, do not correspond to recognized commands in the Junos OS. Each command has its own specific purpose or is simply not valid, which is the reason why they would not yield the intended routing information. In contrast, "show route" is straightforward and directly aligns with Juniper's command syntax for accessing routing information efficiently.