In an MPLS VPN network, which of the following descriptions conforms to the forwarding logic of the "MPLS label stack "?

• A.When a data packet carries multiple layers of tags, the device always processes the innermost tag first.
• B.When receiving data packets, the CE device must remove all MPLS labels before forwarding them.
• C.The device forwards data packets based on the outer label, and then removes the outer label after forwarding.
• D.The inner label is used for backbone network forwarding path identification, and the outer label is used for VPN instance identification.

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In a WAN BGP protocol deployment, if it is necessary to " reject receiving routes to a specific network segment advertised by a neighbor (such as (192.168.10.0/24)"), which of the following filtering policies should be configured?

• A.Use a prefix-list to reject the network segment in the BGP neighbor inbound direction.
• B.Enable BGP route aggregation
• C.Adjust BGP Local Preference properties
• D.Configure BGP neighbor MD5 authentication

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In Huawei's WAN solution, which of the following technologies can "encapsulate IPv6 packets within IPv4 packets and transmit them over an IPv4 WAN to achieve cross-domain IPv6 interoperability"?

• A.IPv4/IPv6 Dual Stack
• B.NAT64
• C.IPv6 over IPv4 GRE tunnel
• D.IPv6 address translation

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In Huawei's SD-WAN solution, which of the following technologies can "enable direct access between branch devices and public clouds (such as AWS), bypassing headquarters relay and reducing latency"?

• A.Accessing cloud resources solely via internet connection, without any optimization measures.
• B.Deploy SD-WAN cloud access points ( PoP ) for direct connection to the public cloud.
• C.Manually configure static routes to point to the cloud network segment, without dynamic adaptation.
• D.All cloud access traffic is relayed through headquarters before accessing cloud resources.

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In Huawei's WAN bandwidth optimization solution, which of the following technologies can
"reduce data transmission volume and shorten backup time" for " large database backup files transmitted across regions"?

• A.Directly transfer the original backup file without any optimization.
• B.Reduce transmission bandwidth and force an extension of backup time.
• C.Block-based deduplication technology (transmitting only newly added/changed data blocks)
• D.Split the backup file into smaller files and transfer them separately, without changing the total data size.

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