Which of the following statements is considered best practice when changing a network policy that has been associated with an interface?

• A.The policy must first be removed from the interface, then modified and re-applied to the interface.
• B.Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.
• C.A new network policy should be created and applied to the interface, overwriting the previous policy.
• D.Before the policy can be changed, it must be deleted with the no network qos <policy-id> command.
• E.The policy should be placed in a "shutdown" state before changes are made.

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Which of the following about an Alcatel-Lucent 7750 SR MP-BGP update is FALSE? Assume default behavior.

• A.On a specific PE, the MP-BGP updates for prefixes from a single VPRN carry different labels.
• B.Traditional BGP attributes and MP-BGP attributes are present in an MP-BGP update.
• C.There can be multiple Route Targets per route in an MP-BGP update.
• D.An MP-BGP update carries an MPLS label that is used as the service label for a VPRN.
• E.There can only be one Route Distinguisher per route in an MP-BGP update.

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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.Customer carrier PE routers residing in different sites must run eBGP between them to exchange customers' routes.
• C.MPLS can be used in the customer carrier network to improve scalability.
• D.The customer carrier network can be a pure IP network.

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An Alcatel-Lucent 7750 SR receives two updates for the same route with local preferences 200 and 300, respectively. What local preference is sent to eBGP peers?

• A.100
• B.300
• C.None
• D.200

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Click the exhibit.

Which of the following can be used by router R4 in AS 65542 to reject all routes originating in AS 65540?

• A.An import policy that rejects updates with an AS Path matching the regular expression ".+ 65540".
• B.An import policy that rejects updates with an AS Path matching the regular expression ".+ 65540 .+".
• C.An import policy that rejects updates with an AS Path matching the regular expression "65540".
• D.An import policy that rejects updates with an AS Path matching the regular expression "65540 .+".

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