A.An ADM (Add Drop Multiplexer) is used to connect various sites to the infrastructure.

B.IP datagrams are encapsulated in an Ethernet frame for transmission over a SONET network.

C.They are deployed over point-to-point physical topologies to allow sub-50ms convergence.

D.IP datagrams are encapsulated in a PPP frame for transmission over an SDH network,

A.IP tunneling

B.IP forwarding

C.IP decapsulation

D.IP encapsulation

A.An Ethernet network with redundant paths not running STP.

B.All of the above.

C.An ATM network.

D.A SONET network.

A.Hello interval.

B.Interface MTU.

C.Router priority.

D.Authentication password.

E.Dead interval.

F.Area ID.

A.The internet remained primarily a research based network and was only commercially adopted in 2000
when the world wide web was conceived.

B.The internet emerged in the commercial world in the 1980's following the US military's adoption of TCP/
IP in 1983.

C.Internet service providers provided the services necessary for military based networks to evolve into
research and education based networks.

D.The internet evolved from a military to a research to a commercial based network.