A. VC Label

B. Tunnel Label

C. VPI

D. Operational Control Word

E. VCI

A. Router R1forms eBGP sessions with routers R2 and R3.

B. The types of BGP sessions with routers R2 and R3 cannot be determined.

C. Router R1forms an iBGP session with router R2, and an eBGP session with router R3.

D. Router R1forms iBGP sessions with routers R2 and R3.

A. Established LDP sessions run over a TCP connection.

B. The lower transport address initiates the session.

C. An LDP session is established immediately after Init messages are exchanged between peers.

D. Frame mode requires multiple sessions between peers.

A. MAC learning reduces flooding of frames with previously learned addresses.

B. The PE routers of the service are responsible for learning MAC addresses.

C. Flooding ensures that all PEs in a fully-meshed VPLS will learn the source address of all traffic.

D. Multiple VPLSes on the same PE share the same MAC FDB.

A. The router 10.10.10.2 is the egress router of the prefix 192.10.1.2/32.

B. The router can reach prefix 192.10.1.2/32 through a RSVP-TE tunnel.

C. The router can reach prefix 192.10.1.2/32 through an LDP tunnel.

D. The Isp-ping tool is used to perform a unidirectional LSP test.