A.Only the best route preferred by BGP can be announced to other BGP neighbors

B.By default, routes learned from IBGP are not forwarded to other IBGP neighbors

C.All BGP routes learned from all BGP neighbors are advertised to other BGP neighbors

D.Only routes learned from IGP can be advertised to other BGP neighbors

A.SNMPv2C

B.All versions can be implemented

C.SNMPv3

D.SNMPv1

A.False

B.True

A.Physical layer

B.Application layer

C.Link layer

D.Network layer