In intra-domain MPLS VPN networks, data packets will be encapsulated with two layers of MPLS when they enter the public network and are forwarded.
label, the description of the two-layer label in the following options is wrong

• A.By default, the outer label is singled out before the packet is forwarded to the last hop device
• B.MPLS VPNEThe outer layer label is called the private network label, and the inner layer label is called the public network label
• C.MPLS VPNThe outer label is made byLDPprotocol or statically assigned, the inner label is assigned by the correct end MP-BGPassigned by neighbors
• D.Layer labels are used inPEThe device sends the packet correctly to the correspondingVPNmiddle

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Which packets can Huawei equipment perform traffic suppression for? (Multiple choice)

• A.Known unicast
• B.Broadcast
• C.Multicast
• D.unknown Unicast

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When troubleshooting a network, if you need to confirm the business traffic path, which of the following tasks may be required? (Multiple choice)

• A.Confirm that the network layer service flow is a path
• B.Confirm the data link layer service traffic path
• C.Investigate business meteor path planning in the network design stage

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If you want to check the files under Flash, which command should you use?

• A.display patch-information
• B.dir sdO:
• C.dir sdl:
• D.dir flash:

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About the difference between NSR and NSF, which is correct?

• A.NSR must rely on neighbor routers to complete
• B.NSP can be done without neighbor routers
• C.NSF must rely on neighbor routers to complete
• D.Both NSR and NSP require neighbor routers to complete

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