Which Cisco IOS command is used to add a prefix to the BGP table and have it advertised into the BGP network?

A) bgp network network
B) network network [mask mask]
C) bgp advertise-network network
D) ip bgp asn

B
Explanation: B) The network network [mask mask] command is used to insert a prefix into the BGP table and have it advertised to any BGP neighbors (based on BGP rules). It is important to remember that the mask is optional and if not included will assume the classful mask of the IP network; this matched network must match an entry in the routing table exactly (including mask) for the network to be advertised.