In an MPLS VPN network, when a data packet is forwarded from the PE device to the CE device, which of the following operations will the PE device perform to process the tag?

• A.Strip the outer public network label, retain the inner VPN label, and forward it to CE.
• B.Retain the double-layer label and forward it directly to the CE device.
• C.Retain the outer public network label, only strip the inner VPN label.
• D.Simultaneously strip the outer public network label and the inner VPN label, and forward the data to CE according to the IP address.

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For the "branch multi-link access" scenario, which of the following functions of Huawei's SD-WAN solution can achieve load balancing and redundancy backup of the links? (Multiple choice)

• A.No link health check; manual link switching is required after a failure .
• B.Link health checks (such as ICMP ping, TCP probes to monitor link status in real time)
• C.All traffic flows through a single link, with other links left idle as cold backups.
• D.Rapid link failure switching (detecting failures in milliseconds and switching to backup links)
• E.Traffic sharing based on bandwidth ratio (e.g., Internet links handle 70% of the traffic, MPLS links handle 30%).

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In Huawei's WAN bandwidth management solution, which of the following functions can "set up independent bandwidth pools for different departments (e.g., 50Mbps for the technical department and 30Mbps for the marketing department) to avoid bandwidth contention between departments"?

• A.All departments share the same bandwidth pool, with no isolation.
• B.Rate limiting based on user bandwidth
• C.Bandwidth pool partitioning and isolation based on department
• D.Allocate bandwidth according to business type, without distinguishing between departments.

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In Huawei's SD-WAN solution, which of the following technologies can "achieve full interconnection communication between multiple branches without manually creating tunnels between each pair of branches"?

• A.Direct communication between branches is prohibited; access to headquarters is permitted only.
• B.All inter-branch communication is relayed through headquarters, increasing latency.
• C.SD-WAN Fully Interconnected Automatic Tunneling Technology (Dynamically Discover Branches and Establish Tunnels)
• D.Manually creating point-to-point tunnels for each pair of branches is complex to configure.

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In an MPLS VPN network, which of the following failures would cause "PE devices to be unable to advertise VPN routes to other PE devices"?

• A.BGP VPNv4 address family is enabled on the PE device.
• B.OSPF neighbor between PE and CE is established normally.
• C.The MPLS protocol has been configured on the D.P device.
• D.BGP VPNv4 neighbors have not been established between PE devices.

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