あなたはH35-831試験の重要性を意識しましたか。答えは「いいえ」であれば、あなたは今から早く行動すべきです。H35-831認定試験資格証明書を取得したら、給料が高い仕事を見つけることができます。また、H35-831練習問題を勉強したら、いろいろな知識を身につけることができます。H35-831練習問題は全面的な問題集からです。
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Backbone Network Planning | 8% | - Architecture design - Scalability design - Capacity and traffic planning |
| Topic 2: Network Orchestration & Automation | 2% | - iMaster NCE overview - SDN and controller architecture |
| Topic 3: Multicast Protocols | 6% | - PIM-SM/SSM - Multicast QoS - MSDP and anycast RP |
| Topic 4: Advanced Routing Protocols | 15% | - OSPF advanced features - Route control and fast convergence - BGP and MP-BGP - IS-IS advanced features |
| Topic 5: High Reliability | 8% | - Network redundancy mechanisms - Fault detection and recovery - Fast protection switching |
| Topic 6: Automatic O&M | 2% | - Monitoring and analysis - Fault management |
| Topic 7: IP Mobile Backhaul | 10% | - 5G/4G backhaul architecture - Service isolation and QoS - Synchronization and timing |
| Topic 8: Tunnel Technologies | 15% | - SR-MPLS and SRv6 - TE and traffic engineering - MPLS fundamentals |
| Topic 9: Cloud Bearer Network | 8% | - Cloud service bearer requirements - Cloud interconnection architecture - DC interconnect technologies |
| Topic 10: VPN Technologies | 15% | - VPN deployment and troubleshooting - EVPN and VXLAN - MPLS L3VPN |
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質問 # 34
In an inter-AS VPN Option C network, VPN routes are exchanged between AS100 and AS200. Which of the following statements concerning inter-AS VPN Option C are correct?
Select all that apply.
正解：B、C、D
解説：
Huawei Reference Verification:
Huawei inter-AS VPN Option C separates labeled public-network reachability from customer VPN route distribution. ASBRs exchange labeled IPv4 unicast reachability and must support MPLS forwarding on the relevant interconnection, including capability negotiation for BGP labels. VPNv4 routes can be exchanged between PEs or between route reflectors in different ASs using MP-EBGP. When the RRs peer via loopbacks and are not directly connected, EBGP multihop configuration is required. Option C does not require ASBRs to host complete VPNv4 tables or necessarily disable route-target filtering on them. Accordingly A, C and D are correct.
Technical Deep Dive:
A, C and D are correct. Option C is a scalable inter-AS MPLS L3VPN design. The ASBRs exchange labeled public IPv4 routes, providing an inter-AS transport LSP to the remote PE. MPLS must operate on the ASBR interconnection in this design and BGP labeled unicast capability must be supported. VPNv4 service routes are distributed directly among PEs or through RRs, so ASBRs need not maintain each customer's VPNv4 prefixes. RRs in separate autonomous systems may establish multihop MP-EBGP VPNv4 peering and use
`peer ebgp-max-hop` when sourced from non-directly connected addresses. Option B incorrectly describes a universally mandatory `undo policy vpn-target` command on ASBRs; route-target filtering matters where VPNv4 routes are actually maintained. The data plane processes transport labels across the inter-AS path and the egress PE performs the customer VPN lookup using its service label.
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質問 # 35
Which of these statements are correct regarding IS-IS reliability parameters on a 5G transport network?
Select all that apply.
正解：A、B、C、D
解説：
Huawei Reference Verification:
Huawei's 5G transport IS-IS reliability design combines intelligent SPF and LSP-generation timers with precomputed TI-LFA protection, microloop avoidance and Graceful Restart. Maximum, initial and incremental delays of 1 second, 50 milliseconds, and 50 milliseconds are a recommended convergent tuning pattern for both SPF and LSP generation in the intended solution. TI-LFA protects eligible failures locally, and microloop avoidance reduces transient forwarding loops when routers converge at different times.
Graceful Restart can preserve continuity during supported routing-control restarts. These complementary functions support all four options, provided GR is not misinterpreted as protecting against arbitrary permanent neighbor disconnection.
Technical Deep Dive:
A, B, C and D represent the intended reliability design. The intelligent SPF timer reacts rapidly to a first topology change, then increases the wait during repeated changes to control CPU load. The LSP-generation timer similarly limits excessive update flooding while maintaining rapid distribution of meaningful state changes. The representative values are 1000, 50, 50 in milliseconds. TI-LFA precomputes backup next-hop instructions and allows rapid repair when a link or protected node fails; microloop avoidance reduces short- lived loops during distributed reconvergence. IS-IS GR permits routing-state and forwarding continuity across an eligible process restart with neighbor helper behavior, but not across every physical failure. Example VRP commands are `isis 1`, `timer spf 1000 50 50`, `timer lsp-generation 1000 50 50`. Exact timer syntax and protection availability must match the device release. A proper reliability plan combines fault detection, local switching, and stable eventual convergence.
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質問 # 36
SR and LDP interworking technology allows SR and LDP to operate together on the same network. SR and LDP networks can be interconnected through this technology to implement MPLS forwarding. To interwork with an LDP network, an SR network needs a particular device type to advertise SIDs on behalf of SR- incapable LDP devices. What is this device called?
正解：C
解説：
Huawei Reference Verification:
Huawei's SR/LDP interworking design defines a mapping server as an SR-capable node that advertises Prefix- to-SID mappings on behalf of LDP nodes that cannot originate Segment Routing advertisements. A mapping client receives this information and can use the assigned SID to calculate SR paths toward destinations otherwise reachable through the LDP domain. Border or interworking routers can connect SR and LDP transport segments to provide continuity during gradual migration. The mapping server originates the advertisements; a mapping client consumes them. Therefore D is correct.
Technical Deep Dive:
D is correct. SR-MPLS distributes Prefix-SIDs through IGP extensions, whereas traditional LDP distributes label bindings using LDP sessions. An LDP-only router cannot advertise a valid SR Prefix-SID directly. The mapping server bridges this information gap by announcing a configured prefix-to-SID association for the SR- incapable node. SR-capable mapping clients learn the association and can build a label stack toward that destination. The interworking boundary performs the MPLS operations required to connect the SR and LDP forwarding segments. A representative OSPF-based Huawei configuration includes `segment-routing`,
`mapping-server prefix-sid-mapping 10.10.10.10 32 100`, and in the OSPF process `segment-routing mapping- server send` where supported. Mapping server versus mapping client is a producer/consumer distinction: the server advertises the prefix mappings, and the client receives and uses them. The feature permits phased modernization of large carrier networks without replacing all LDP devices at once.
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質問 # 37
In an EVPN VXLAN solution, which of the following features can be enabled to reduce ARP packet flooding between VTEPs?
Select all that apply.
正解：A、C、D
解説：
Huawei Reference Verification:
Huawei EVPN VXLAN provides ARP optimization through local proxy ARP, host-information collection and ARP broadcast suppression. The VTEP learns or imports IP-to-MAC mappings, which can be distributed through EVPN MAC/IP routes. When the destination mapping is known, the VTEP may answer ARP requests locally rather than flooding the request to remote VTEPs. ARP suppression similarly limits broadcasts when suitable host reachability information exists. Interface isolation restricts endpoint communication but does not independently supply the IP/MAC resolution or flood-suppression mechanism.
Thus A, B and C are applicable.
Technical Deep Dive:
A, B and C reduce unnecessary ARP flooding. A local proxy responds to known requests using cached or learned IP/MAC bindings. Host-information collection populates and distributes the information that makes local resolution possible, often through EVPN Type 2 routes. ARP broadcast suppression prevents unnecessary network-wide ARP replication when the gateway already knows the relevant destination host binding. These mechanisms reduce overhead in large tenant VXLAN overlays with many VTEPs. Interface isolation serves a different purpose: preventing or restricting communication between endpoints on specified interfaces. Depending on Huawei platform and BD mode, `arp l2-proxy enable` and `arp broadcast-suppress enable` may be mutually exclusive within the same bridge domain; the question asks which mechanisms can reduce flooding, not whether all must run simultaneously. Representative commands include `bridge-domain
10`, `arp broadcast-suppress enable`, and `arp l2-proxy enable` in compatible configurations.
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質問 # 38
When synchronizing LSDBs over a P2P network, IS-IS does not need to send CSNPs.
正解：B
解説：
Huawei Reference Verification:
Huawei's IS-IS implementation distinguishes the CSNP behavior on broadcast and point-to-point links. A DIS periodically sends CSNP summaries on broadcast networks, but P2P adjacencies still exchange CSNPs during initial database synchronization. After comparing the received complete list of LSP headers with its own LSDB, a router can use PSNPs to request missing information or acknowledge LSPs. The absence of periodic DIS-based CSNP flooding on P2P links does not mean that CSNPs are never exchanged. Hence the assertion that P2P synchronization does not need CSNPs is false.
Technical Deep Dive:
B is FALSE. IS-IS uses Hellos to establish adjacency, LSPs to disseminate link-state information, and SNPs to compare or request database information. A CSNP provides a complete summary of known LSPs; PSNPs carry partial summaries, requests or acknowledgments depending on link context. On a P2P link, the two routers exchange CSNPs when the adjacency is initially established so they can identify differing LSP content. Missing or stale LSPs are requested or refreshed through the appropriate PSNP and LSP exchange.
P2P links do not elect a DIS and thus lack the periodic DIS behavior seen on multiaccess LANs. But the absence of a DIS is not proof that CSNP is unnecessary at adjacency setup. This is an important exam-key correction: the intended statement is false under Huawei's documented P2P LSDB synchronization procedure.
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質問 # 39
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多くの人にとって、H35-831試験に合格することは非常に難しいことがわかっています。正しい教材を選択することは非常に重要であるため、すべての人は教材にもっと注意を払う必要があります。正しいH35-831準備資料を選択するのが難しい場合は、良いニュースがあります。会社の多くの専門家や教授によって設計されたH35-831準備ガイドは、すべての人々が模擬試験に合格し、最短時間でHuawei認定を取得するのに役立ちます。また、合格率は98％以上です。
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