A.After the forwarding table is checked.

B.When the router first receives a frame from a LAN.

C.Immediately before the IP packet is encapsulated for transmission.

D.After the IP datagram is extracted from the L2 frame.

A.?

B.tab character

C.space character

D.info

A.IGP

B.EGP

C.EBGP

D.BGP can not be run between routers in different ASs.

E.IBGP

A.An autonomous system is a network or group of networks operating under one administrative authority.

B.An autonomous system is a loosely defined term that can refer to any organization that has a
connection to the Internet.

C.An autonomous system is a network or group of networks from many organizations running different
IGP routing protocols, but all running BGP.

D.An autonomous system is another term for the collection of routers that make up the Internet

A.The switch floods the frame out of all ports except the port on which it was received.

B.The switch looks in its FDB. If the destination address is known it forwards the frame out the appropriate interface.

C.The switch looks in its FD If the source address is unknown it discards the frame.

D.The switch looks in its FDB. If the destination address is unknown it discards the frame.

E.The switch looks in its FDB. If the destination address is unknown it floods the frame out all ports except the port on which it was received.