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Huawei H35-831 (HCIE-Datacom-Carrier (Written) V1.0) Certification Exam is a highly reputable and comprehensive certification program aimed at validating the skills and expertise of learners in the field of data communication and carrier networks. HCIE-Datacom-Carrier (Written) V1.0 certification exam is designed to equip learners with the necessary knowledge and skills to design, deploy, optimize, and troubleshoot data communication and carrier network solutions based on Huawei technologies.
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Huawei H35-831 Certification Exam is recognized globally as a highly respected certification in the field of data communication and carrier networking. HCIE-Datacom-Carrier (Written) V1.0 certification is highly valued by employers, as it demonstrates that the candidate has the knowledge and skills required to design and implement complex data communication and carrier networking solutions.
NEW QUESTION # 40
The new metro network is built with modular, standardized components. It is designed for fixed-mobile convergence (FMC) and cloud-network integration requirements, and it enables flexible network expansion, rapid service provisioning, and network intelligence.
Answer: A
Explanation:
Huawei Reference Verification:
Huawei's official CloudMetro solution architecture describes a metropolitan network built around a Network Cloud Engine (NCE) and an underlying bearer infrastructure capable of providing differentiated end-to-end network services. The design separates functional modules, cloud operating systems, and physical forwarding resources into independently manageable layers. Service management and network-resource control are centralized, while modular network functions can be orchestrated according to subscriber and application requirements. This approach enables flexible resource scheduling, automated provisioning, simplified service deployment, and more efficient operations and maintenance. These capabilities substantiate the statement that the new metro network supports flexible expansion, fixed-mobile convergence, cloud-network integration, and intelligent service management.
Technical Deep Dive:
The statement is TRUE because modern carrier metro networks are evolving from device-centric architectures to service-oriented and programmable transport infrastructures. Traditional metro designs often combine subscriber management, service processing, and forwarding in individual physical devices, creating complexity when expanding capacity or adding services. CloudMetro addresses these limitations using functional modularization, control and forwarding separation, and centralized service orchestration. Fixed- mobile convergence enables residential broadband, enterprise VPNs, and mobile backhaul to share common transport resources while maintaining separate VPN and QoS policies. Cloud-network integration supports coordinated allocation of compute, storage, and connectivity. Rather than manually configuring each device, network functions and connectivity can be provisioned through centralized policies. On supported NetEngine platforms, forwarding processors and ASICs perform IP lookups, MPLS label operations, ACL matching, classification, and QoS scheduling. Combining modularity, high-performance hardware forwarding, and centralized service control provides rapid service activation, predictable scaling, and lower operational complexity.
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NEW QUESTION # 41
Which of the following statements regarding EVPN on a 5G transport network is incorrect?
Answer: D
Explanation:
Huawei Reference Verification:
Huawei EVPN L3VPN advertises IPv4/IPv6 customer prefixes using EVPN IP Prefix routes, while VPN- instance routing contexts maintain the reachability needed for customer forwarding. The command `advertise l2vpn evpn` enables the applicable VPN-instance routes to be advertised through EVPN. Route import and local VPN-instance visibility may involve EVPN and VPNv4-related display contexts depending on the device and release. The answer key identifies A as incorrect because it imposes an absolute restriction that EVPN L3VPN routes appear only in the EVPN table. Note that EVPN Type 5 NLRI and VPNv4 NLRI are distinct BGP address families, so the exact global-table display assertion requires careful release-specific interpretation.
Technical Deep Dive:
A is the intended incorrect choice, with technical qualification. EVPN Type 5 IP Prefix routes distribute customer subnets for L3VPN services over EVPN transport. They can be imported into a local VPN routing context, where forwarding routes are programmed for the service. Huawei commands include `display bgp evpn all routing-table`, `display bgp vpnv4 all routing-table`, `display bgp vpnv4 vpn-instance vpn1 routing- table`, and `display ip routing-table vpn-instance vpn1`. These inspect different address-family and VPN- instance views. The intended curriculum item rejects the unconditional claim that EVPN L3VPN routing information exists only in one EVPN table. Nevertheless, EVPN Type 5 advertisements do not automatically turn into VPNv4 NLRI in every global BGP table; output depends on actual import and advertisement configuration. Option C contains a common typing confusion: the command is `advertise l2vpn evpn` with lowercase letter L, not the digits '12'. Option D's feature view is also product-release dependent. Publish a release qualification for this item.
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NEW QUESTION # 42
The system IDs for the same IS-IS device in separate processes can be identical.
Answer: A
Explanation:
Huawei Reference Verification:
Huawei IS-IS multi-process operation keeps separate link-state databases, neighbor state, and route calculations for distinct routing-process instances. IS-IS system IDs must be unique among nodes within the same applicable routing domain to avoid conflicting LSP identities. However, using the same system ID in independent IS-IS processes on one router is permissible when their associated routing instances do not collide. The process number distinguishes the local protocol instance; the system ID identifies the device within the relevant IS-IS domain. Accordingly the statement is true.
Technical Deep Dive:
A is TRUE. An IS-IS NET contains an area portion, a six-byte system ID, and an N-selector, typically 00. For example, 49.0001.0000.0000.0001.00 contains system ID 0000.0000.0001. Router identities must be unique within a shared LSDB because duplicate system IDs cause LSP collisions and unstable topology representation. A device can nevertheless run multiple independent IS-IS processes with separate interfaces and databases. Reusing the system ID across those distinct processes does not inherently violate the uniqueness requirement as long as each routing domain remains unique internally. This distinction is between the globally configured value on the physical device and its meaning inside a protocol domain. On VRP,
`display isis brief`, `display isis peer` and `display isis lsdb` allow engineers to check process, adjacency and LSP state.
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NEW QUESTION # 43
In SRv6 BE scenarios, the original IPv6 packet encapsulation structure remains unchanged. SRv6 packets continue to be IPv6 packets and can be recognized by common IPv6 devices.
Answer: A
Explanation:
Huawei Reference Verification:
Huawei SRv6 Best Effort uses the native IPv6 forwarding plane. The ingress may place the service SID in an outer IPv6 destination address, and ordinary IPv6-capable P routers forward according to their IPv6 FIB without needing to execute SRv6-specific endpoint behavior. SRv6 BE typically uses shortest-path transport based on IGP reachability rather than explicitly engineered segment lists. The packet remains a valid IPv6 packet that standard IPv6 routers can recognize and carry. This supports A as the intended answer, without implying that SRv6 services never add an outer IPv6 header or optional routing extension.
Technical Deep Dive:
A is TRUE. SRv6 represents forwarding instructions as 128-bit IPv6 SIDs combining a routable locator with an endpoint function and possibly arguments. In Best Effort mode an IPv6 underlay computes reachability to the destination locator; intermediate P routers perform ordinary longest-prefix-match forwarding. The SRv6- capable egress PE recognizes the local service SID and executes its behavior, such as End.DT4 for a customer IPv4 VPN. This compatibility allows gradual introduction of SRv6 services without demanding SID processing on every transit node. It is important not to interpret 'original IPv6 packet structure remains unchanged' as a guarantee of no encapsulation overhead: an outer IPv6 header may be added when carrying VPN traffic, and an SRH may be present in other SRv6 modes. The claim concerns the fundamental use of standard IPv6 forwarding and packet format rather than the absence of additional headers.
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NEW QUESTION # 44
The topology shown is a typical transport-network access-layer structure. Each core-network device is dual- homed to two CEs, and the CEs and PEs are interconnected in a square-loop topology. The access layer must carry voice and signaling services. Two VPN instances must be configured on each CE to isolate voice services from signaling services and provide security and QoS. Signaling services are transmitted in active
/standby mode, while voice services are transmitted in load-balancing mode. VRRP must be enabled between the two CEs to terminate signaling flows. From the perspectives of network robustness and architectural suitability, which statements about this topology are correct?
Exhibit 60.1 - Original topology/configuration figure
Select all that apply.
Answer: B,D
Explanation:
Huawei Reference Verification:
Huawei's square-loop carrier access design uses dual-homed CEs and redundant PEs to maintain voice and signaling service reachability during individual failures. Separate VPN instances protect service isolation and enable differentiated QoS. A CE-to-CE link must have sufficient engineered bandwidth to carry the traffic diverted to it during failure conditions; a conservative recommendation is capacity at least as large as the relevant CE-PE interconnection. Higher-volume media services can be mapped to GE and lower-volume signaling services to FE in the intended equipment layout. GE and FE ports cannot simply be mixed in one conventional Eth-Trunk, and choosing GE rather than POS for every CE-PE connection is not an unconditional rule. Thus C and D are the intended topology choices.
Technical Deep Dive:
C and D are the intended answers. The topology has two CEs connected to redundant PEs, with a square-loop design and separate voice/media and signaling VPN instances. VRRP provides active/standby gateway behavior for the signaling service, while voice media can use load-balanced forwarding according to service design. During a CE-PE failure the surviving CE-to-CE connection may carry diverted traffic; the inter-CE link should be sized to the expected failure-state traffic, and engineering it to at least the CE-PE bandwidth is a conservative design objective. GE has higher capacity and is suitable for voice/media concentration, while FE may suffice for the smaller signaling load. Option A incorrectly presents GE-only CE-PE transport as mandatory; POS may also carry routed transport services when appropriate. Option B incorrectly proposes mixing GE and FE links as Eth-Trunk members despite compatibility and rate requirements. QoS priorities and bandwidth reservations must also preserve low latency and low jitter for real-time services. Neither C nor D is a universal physical law: capacity and interface rates should match measured worst-case failure traffic and service requirements.
NEW QUESTION # 45
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