It is known that the configuration of a router's PBR is as follows:
policy-based-route pbr_a permit node 10
if-match acl 3000
if-match packet-length 101 1000
apploutput-interface serial 2/0
Assuming the policy is successfully applied, how will the relevant traffic on this router be forwarded?

In the topology shown in the figure, perform the following configuration on the RTA:
RTA-ospf-1-area-0.0.0.1]network 192.168.0.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.1.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.2.0 0.0.0.255
RTA-ospf-1-area-0.0.0.1]network 192.168.3.0 0.0.0.255
Now it is required that the RTC cannot learn the routes configured in the above RTA. What configurations can be performed on the router?

Which of the following descriptions about route filtering is correct?

In the IS-IS network shown in the figure, after the routes of each router are stable, the IS-IS Level-1 routes learned by RTB through neighbors are ______.

For the networking and applicable scenarios of IS-IS and OSPF, the correct one in the following description is ______.