A.Use pseudowire for Layer 2 routes

B.Use MP-BGP for customer routes

C.Use OSPF between PE and CE

D.Use a unique RD per customer VRF

E.Use LDP for customer routes

A.RIP learned routes are distributed to OSPF with a tag value of one

B.OSPF redistributes RIP routes only if they have a tag of one

C.R1 adds one to the metric for RIP learned routes before redistributing to OSPF

D.RIP routes are redistributed to OSPF without any changes

A.DHCPv6 Guard

B.DHCPv6 Root Guard

C.IPv6 Source Guard

D.IPv6 Prefix Guard

A.Windowing

B.Global synchronization

C.MSS

D.Asymmetric routing

A.30 minutes

B.2 hours

C.15 minutes

D.1 hour