How many unique area addresses can the ISIS TLV 1 carry?（）

A. Configured mapping agents listen to this address.
B. Mapping agents select RP for a group based on highest IP address of all the group's C-RPs.
C. RP mapping agent advertises complete list of group-to-RP mappings.
D. All configured PIM-SM routers listen to this address and learn the correct RP to use for each known group.

A. Martini based VPNs
B. 2547bis based VPNs
C. Sham link based VPNs
D. Virtual Router based VPNs

A. set protocols bgp group mygroup path-selection cisco-non-deterministic;
B. set protocols bgp group i-bgp no-aggregator-id;
C. set protocols bgp group mygroup no-client-reflect;
D. set protocols bgp group i-bgp damping;