After executing the displaospf interface command on the MSR router RTA, the router output is as follows:

It can be judged from the above output that ________.

The RIP protocol is enabled on a router with a priority of 10; the OSPF protocol is also enabled with a priority of 100. If two protocols have learned the route 10.0.0.0/8 at the same time, the metric values are 1 (hop count) and 100 (cost value), and the next hop is 1.0.0.1 and 1.0.0.2 respectively.
After the router receives a packet with a destination address of 10.0.0.1, how to deal with it?

The following description of the address prefix list is incorrect is _______.

As shown in the figure, the MSR router in the headquarters is connected to the branch through the Ethernet interface E1/0, and the connection is backed up through the ISDN network. Which of the following options is the most reasonable and feasible at this time?

Execute the displaospf vlink command on the MSR router RTA, the router output is as follows:
OSPF Process 100 with Router ID 3.3.3.3
Virtual Links
Virtual-link Neighbor-ID -> 2.2.2.2, Neighbor-State: Full
Interface: 20.0.0.1 (GigabitEthernet0/1)
Cost: 1 State: P-2-P Tpe: Virtual
Transit Area: 0.0.0.1
Timers: Hello 10, Dead 40, Retransmit 5, Transmit Dela1
From the above output, you can judge _______.