Which of the following statements is NOT a valid reason to use MP-BGP as a routing protocol to transport VPRN routes?
A. MP-BGP can carry routing information for a number of different address families.
B. MP-BGP is designed to exchange information between routers that are not directly connected. This feature keeps VPRN routing information out of P-routers.
C. The number of VPRN routes can become very large. MP-BGP can support a very large number of routes.
D. All of the above statements are valid reasons for using MP-BGP as a VPRN routing protocol.
E. MP-BGP can carry additional information attached to a route as an optional BGP attribute.
正解:D
質問 2:
Which of the following about the label stack of a VPRN is FALSE?
A. The transport label is used to forward packets between PEs.
B. Labels are initially added at the ingress PE.
C. The service label is used to identify which VPRN a packet belongs to.
D. The service label is swapped for a transport label during transport.
正解:D
質問 3:
Which of the following SAP encapsulations support multiple services on a port? (Choose 3)
A. ipcp
B. atm
C. dot1q
D. null
E. qinq
F. bcp-null
正解:B,C,E
質問 4:
Which of the following statements is TRUE concerning the advertisement of VRF routes on a 7750 SR?
A. By default, a 7750 SR advertises all routes in the VRF to a CE router.
B. By default, a 7750 SR does not advertise all routes in the VRF to a CE router.
C. By default, a 7750 SR does not advertise all routes in the VRF to other PE routers.
D. The default 7750 SR behavior describes all routes in a VRF that are advertised to other PE routers.
正解:B,D
質問 5:
Which of the following are characteristics of a SDP? (Choose 2)
A. SDP IDs are locally unique.
B. SDPs are specific to one service type
C. SDPs are a logical way to direct traffic between services.
D. SDP IDs must be unique across the network.
E. SDPs must use MPLS for their encapsulation
F. SDPs are a logical way to direct traffic from one router to another.
正解:A,F
質問 6:
On an Alcatel-Lucent 7750 SR, which of the following statements about the default advertisement of VRF routes is true?
A. All routes in the VRF are advertised to the PEs, but not to the CEs.
B. No routes in the VRF are advertised to the PEs or to the CEs.
C. All routes in the VRF are advertised to the CEs, but not to the PEs.
D. All routes in the VRF are advertised to the PEs and CEs.
正解:A
Hirayama -
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