Which of the following statements about the OSPF area in the network (Area) is correct? (multiple choice)

The FQDN of the following domain names is ______.

The following debug information is viewed on the customer's router MSR 30:
*0.87831022 IP/8/debug_icmp:
ICMP Receive: ttl-exceeded(Type=11, Code=0), Src = 3.3.3.1, Dst = 3.3.3.2; Origi
nal IP header: Pro = 1, Src = 3.3.3.2, Dst = 20.1.1.1, First 8 bytes = 080081FF
ABD40004
*0.87833017 IP/8/debug_icmp:
ICMP Receive: ttl-exceeded(Type=11, Code=0), Src = 3.3.3.1, Dst = 3.3.3.2; Origi
nal IP header: Pro = 1, Src = 3.3.3.2, Dst = 20.1.1.1, First 8 bytes = 08007A2E
ABD40005
Based on this, it can be inferred that ______.

Three MSR routers are connected in the same LAN network, as shown in the figure. Run OSPF on the LAN interconnection network segment of the three routers, and the DR priorities of RTA, RTB, and RTC are 2, 2, and 3 respectively.

Due to the failure of the RTC LAN link, only RTA and RTB are currently working normally, and the OSPF neighbor status between RTA and RTB is stable. So _____ . (Multiple choice)

The two WAN interfaces S1/0 and S1/1 of the router MSR-1 are connected to the routers MSR-2 and MSR-3 respectively. At the same time, the Ethernet port of MSR-1 is connected to MSR-4, and all four routers run RIP protocol.
After the network 192.168.0.0 on MSR-1 fails, MSR-1 immediately sends the update message that the route is unreachable to the other three routers. If the suppression time is not considered, then ______. (Multiple choice)