A.In the Established state, BGP peers can exchange Update packets, Route-refresh packets, Keeplive packets, and Notification packets.

B.The status of both BGP peers must be OpenConfirm. The BGP neighbor relationship can be established. The two parties exchange routing information through Update packets.

C.In the Idle state, BGP rejects any incoming connection requests and is the initial state of BGP.

D.In the Active state, BGP will attempt to establish a TCP connection, which is the intermediate state of BGP.

A.UPDATE message can carry multiple reachable routing information.

B.In general, UPDATE messages are sent after Keepalive

C.UPDATE message is sent in multicast form

D.UPDATE message is used as routing information between BGP peers

A.If the network type of the receiving port is broadcast, point-to-multipoint or NBMA, the network mask field in the received Hello message and the interface can be inconsistent.

B.The E-bit in the Options field in the received Hello message must be consistent with the configuration of the related area.

C.The RouterDeadInteral field in the received Hello message must be consistent with the configuration of the receiving port.

D.If the network type of the receiving port is point-to-point type or virtual link, the Network Mask field is not checked.

A.True

B.False

A.display ip ospf peer

B.display ospf neighbor

C.display ip ospf neighbor

D.display ospf peer