Run the command and display information on the router as follows:
<RTA>displaisis peer
Peer information for ISIS (1)
----------------------------
Stem Id: 2222.2222.2222
Interface: Tun2 Circuit Id:
State: Up HoldTime: 27s Tpe: L1 PRI: -
Stem Id: 3333.3333.3333
Interface: Tun3 Circuit Id:
State: Up HoldTime: 25s Tpe: L2 PRI: -
From the above information, you can know RTA______.

In the topology shown in the figure, the following configurations are performed on RTA, RTB, RTC and RTD:
RTA-LoopBack0] ip address 1.1.1.1 255.255.255.255
RTA]ospf 1
RTA-ospf-1]area 1
RTA-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTA-ospf-1]import-route direct
RTB-LoopBack0] ip address 2.2.2.2 255.255.255.255
RTB]ospf 1
RTB-ospf-1]area 1
RTB-ospf-1-area-0.0.0.1]network 10.0.0.0 0.0.0.255
RTB-ospf-1-area-0.0.0.1]area 0
RTB-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
RTB-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-LoopBack0] ip address 3.3.3.3 255.255.255.255
RTC]ospf 1
RTC-ospf-1]area 0
RTC-ospf-1-area-0.0.0.0]network 20.0.0.0 0.0.0.255
RTC-ospf-1-area-0.0.0.0]area 2
RTC-ospf-1-area-0.0.0.2]nssa default-route-advertise no-summarRTC-ospf-1-area-0.0.0.2]network
30.0.0.0 0.0.0.255
RTC-ospf-1]import-route direct
RTD-LoopBack0] ip address 4.4.4.4 255.255.255.255
RTD]ospf 1
RTD-ospf-1]area 2
RTD-ospf-1-area-0.0.0.2]network 30.0.0.0 0.0.0.255
RTD-ospf-1-area-0.0.0.2]nssa
RTD-ospf-1]import-route direct
Which of the following routes may exist in the RTD routing table _______.

There are 4 routes in the routing table 172.16.0.0/24, 172.16.1.0/24, 172.16.2.0/24, 172.16.3.0/24.
For route aggregation, the correct route after aggregation is __________.

In the alliance deployment shown in the figure, which of the following statements is false?

Regarding the comparison between OSPF and RIP, which of the following statements are correct?