A.D.D message

B.LSA Update message

C.LSA Request message

D.Hello message

A.After the option 43 field is configured, the AP will only send unicast Discovery Request messages to the AC IP address advertised by option 43

B.The command to configure the option43 parameter field of the DHCP server to the IP addresses of the primary and standby ACs is option43 sub-0ption 2 ip-address ip-address &<1-8>

C.To configure the option 43 field, the AP needs to be notified of the IP addresses of the primary AC and backup AC to which it belongs, and also the IP addresses of other primary ACs.

D.If the AC of the IP address advertised by option 43 does not respond to the AP, the AP will find that the AC will immediately fail

A.Load sharing method refers to the establishment of two or more backup groups, and multiple routers carry services at the same time

B.The load sharing method means that multiple routers undertake services at the same time, so the load sharing method requires two or more virtual routers

C.Multiple virtual routers can be created on one interface of the router, so that the router can be used as a master router in one virtual router, and at the same time as a backup router in other virtual routers.

D.When configuring priorities, the VRRP masters of the three virtual routers can be on different routers

A.The address realizes the function from the IPv6 address to the link layer address

B.When sending a neighbor solicitation message, the destination address must be the neighbor's solicited node multicast address

C.Two ICMPv6 messages, neighbor solicitation and neighbor advertisement, are used in the address process

D.When sending a neighbor solicitation message, the source address must be the link-local address of the local interface

A.False

B.True