In Huawei's WAN bandwidth optimization solution, for "low-bit-rate IoT device data (such as sensor- collected data) transmitted across regions", which of the following technologies can
"reduce data transmission overhead and improve transmission efficiency"?

• A.Relying solely on link bandwidth expansion without optimizing data transmission mechanisms.
• B.Transmit raw IoT data directly without any optimization.
• C.IoT data packet aggregation technology (merging multiple small packets into one large packet for transmission)
• D.Increase the data transmission frequency of IoT devices to ensure data real-time performance.

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(Which of the following fields in the ESP protocol is used to prevent replay attacks?)

• A.Sequence Number
• B.Next Header
• C.SPI
• D.Authentication Data

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In Huawei's SD-WAN solution, which of the following technologies can achieve "intelligent routing between branches and headquarters/cloud" to ensure the experience of critical business operations? (Multiple choice)

• A.Relies on only a single internet link, with no redundancy .
• B.Static routing uses a fixed route (not adjusted based on link status).
• C.Application-based priority scheduling (e.g., prioritizing VoIP services)
• D.Multi-link quality detection (real-time monitoring of bandwidth, latency, and packet loss rate)
• E.Dynamic path switching based on link state (automatic switching to backup links when a link fails)

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(Traffic of a traditional network is transmitted to the VXLAN network through the edge node. A VXLAN network accesses an external network through the ______ node.)

• A.Edge
• B.Spine
• C.Border
• D.Access

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In the WAN BGP protocol, if "IBGP neighbors are not configured with route reflectors or federations, and there are no direct links," which of the following problems will occur?

• A.BGP neighbors cannot be established.
• B.BGP route aggregation failure
• C.BGP neighbor authentication failed.
• D.IBGP neighbors do not forward routes to each other (split horizon mechanism)

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