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AS-override is configured on PE1 to eliminate the BGP loops. What is the expected AS-Path in the VPN-IPv4 route 64496:10:192.168.2.0/27 received by PE1?

• A.64497
• B.64496
• C.64497 64497
• D.64496 64497

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For a Carrier Supporting Carrier (CSC) VPRN where the customer carrier is an ISP that provides Internet connectivity to its end-customers, which of the following is FALSE?

• A.All traffic exchanged between end-customers is carried over a single CSC VRF.
• B.The customer carrier network can be a pure IP network.
• C.Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers' routes.
• D.MPLS can be used in the customer carrier network to improve scalability.

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In IEEE 802.1ag, how are loops detected?

• A.The MEP sees its own CFM frames returned to itself.
• B.This is not a function of IEEE 802.lag but of 802.1D
• C.Spanning-tree BPDUs are returned to the sender.
• D.The record field of the CFM frame keeps track of chassis-mac addresses.

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Port 1/1/1 has been configured as an access port with QinQ encapsulation. Which of the following three statements are true for ingress traffic assuming default configuration? (Choose 3)

• A.sap 1/1/1:200* will strip the top tag of 200 and the bottom tag will be transparently passed.
• B.sap 1/1/1:0* will accept all untagged frames.
• C.sap 1/1/1:0* will accept any tagged frames.
• D.sap 1/1/1:*.0 is a valid sap ID .
• E.sap 1/1/1:100* will accept frames with a single tag of 100.

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CE-A is on VLAN 200 and CE-B is on VLAN 300. Which of the following SAP ids can be configured on PE-A and PE-B to allow direct communication between CE-A and CE-B?

• A.PE-A will require a SAP id of "sap 1/1/1" and PE-B will require a SAP id of "sap 1/1/1".
• B.PE-A will require a SAP id of "sap 1/1/1:*" and PE-B will require a SAP id of "sap 1/1/1:*".
• C.PE-A will require a SAP id of "sap 1/1/1:200" and PE-B will require a SAP id of "sap 1/1/1:300.
• D.PE-A will require a SAP id of "sap 1/1/1:0" and PE-B will require a SAP id of "sap 1/1/1:0".

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