A.config>router> static-route 0.0.0.0 255.255.255.255 next-hop 10.1.2.1

B.config>router> static-route 0.0.0.0/0 next-hop 10.1.2.2

C.config>router> static-route 0.0.0.0/0 next-hop 10.1.2.1

D.config> static-route 0.0.0.0/0 next-hop 10.1.2.2

A.Layer 3 IP multipoint-to-multipoint VPN service.

B.Layer 2 multipoint-to-multipoint service.

C.Layer 3 direct Internet access service.

D.Layer 2 point-to-point service.

A.On both the CEs and PEs.

B.On only the branch office CE.

C.On the CEs only.

D.On the PEs only.

A.When two areas need to communicate and there is no area 0.

B.When an area needs to traverse another area to reach area 0.

C.When an area needs to connect directly to another area without using area 0.

D.When two areas are connected to area 0, but there is no direct path between them.

A.VC-ID

B.SAPID

C.Customer ID

D.SDPID

E.Service ID