Routing Tables

BC

Answer:

B. Devices running the Junos OS can accommodate multiple routing tables. C. Information learned from routing protocols is stored in the routing table.

Explanation:

A routing table is a database maintained by a network device, such as a router, that lists available routes to particular network destinations, and in some cases, metrics associated with those routes. The router uses this information to determine the best path for forwarding traffic.

Option A is incorrect because the forwarding table is populated by the routing table, not the other way around. The routing table contains all available routes, including those learned from routing protocols and static routes configured by the network administrator.

Option B is correct because Junos OS devices can have multiple routing tables, allowing for more flexible routing and better network segmentation. By default, Junos OS devices have at least two routing tables: the inet.0 table for IPv4 unicast routes and the inet6.0 table for IPv6 unicast routes. Additional routing tables can be created to support VPNs or other specialized routing requirements.

Option C is correct because routing protocols, such as OSPF or BGP, exchange information about network routes with other routers and store that information in their respective routing tables. The routing table contains all available routes, including those learned from routing protocols and static routes configured by the network administrator.

Option D is incorrect because the primary routing table for IPv4 unicast routes is inet.0, not inet.4. The inet.4 table is used for IPv4 multicast routes.

Therefore, options B and C are the correct answers.