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H12-893_V1.0勉強の資料 & H12-893_V1.0試験資料
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Huawei H12-893_V1.0 認定試験の出題範囲：
トピック
出題範囲
トピック 1
- M-LAG の技術的原理とアプリケーション: このセクションでは、データ センター ネットワーク エンジニア向けにマルチシャーシ リンク アグリゲーション (M-LAG) の概念を紹介します。基本原理、構成、ネットワークの信頼性を高める利点、M-LAG セットアップ内の障害保護のメカニズム、展開プロセス、考慮事項、データ センターにおける M-LAG のベスト プラクティスについて説明します。
トピック 2
- 仮想化の技術的原則とアプリケーション: このセクションでは、データセンター内のサーバーとネットワークの仮想化の概念、利点、実装戦略を理解する IT ソリューション アーキテクトとデータセンター ネットワーク エンジニアのスキルを評価します。また、Huawei の FusionCompute プラットフォーム、その機能、機能、仮想化シナリオでのアプリケーションについても紹介します。
トピック 3
- データ センター ネットワーク テクノロジーとアプリケーション: このセクションでは、現代の企業におけるデータ センターの基本概念、進化、重要性を理解する IT ソリューション アーキテクトとデータ センター ネットワーク エンジニアのスキルを評価します。コンピューティング、ストレージ、ネットワーク コンポーネントを含む全体的なアーキテクチャを詳しく調べ、金融、政府、大企業などのセクターにおける一般的なアプリケーション シナリオに焦点を当てます。さらに、スパイン リーフ アーキテクチャに焦点を当てたデータ センター ネットワーク (DCN) のコア概念を紹介し、VXLAN ベースのネットワーク レイヤー、アンダーレイおよびオーバーレイ ネットワーク、統合ケーブル設計 (ToR、EoR、MoR)、機器室モジュール、ネットワーク デバイスの管理における iMaster NCE の役割など、重要なデータ センター テクノロジーの概要を示します。
H12-893_V1.0試験資料、H12-893_V1.0受験記
長年のマーケティングを通じて、当社のH12-893_V1.0最新の認定ガイドは多くのお客様のサポートを獲得しています。最も明白なデータは、当社の製品が毎年徐々に増加していることであり、当社の製品開発のおかげでこのような大きな成功を達成するための大きな努力です。まず、資料の更新を研究する上で非常に良い仕事をしました。さらに、H12-893_V1.0の実際のH12-893_V1.0学習ガイド教材の品質は、教師によって厳密に管理されています。だから、私たちは正しい選択だと信じています。H12-893_V1.0学習教材について質問がある場合は、ご相談ください。
Huawei HCIP-Data Center Network V1.0 認定 H12-893_V1.0 試験問題 (Q44-Q49):
質問 # 44
Which of the following statements is false about the routing design for the underlay network during DCN deployment?
- A. Compared with OSPF, EBGP involves fewer calculations and offers better scalability.
- B. OSPF is recommended for small and midsize DCNs, and EBGP is recommended for large and midsize networks.
- C. When EBGP is used on the underlay network, each group of active-active leaf nodes is deployed in an AS.
- D. When OSPF is used on the underlay network, only single-area OSPF can be deployed.
正解：D
解説：
The underlay network in Huawei's DCNs (e.g., CloudFabric) uses routing protocols like OSPF or BGP. Let's evaluate each statement:
A . OSPF is recommended for small and midsize DCNs, and EBGP is recommended for large and midsize networks: This is true. OSPF suits smaller networks (<300 switches), while EBGP is better for large networks (>300 switches) due to scalability. TRUE.
B . When OSPF is used on the underlay network, only single-area OSPF can be deployed: This is false. Multi-area OSPF can be deployed to manage larger networks, reducing routing table size and improving stability, a common practice in Huawei DCNs. FALSE.
C . Compared with OSPF, EBGP involves fewer calculations and offers better scalability: This is true. EBGP's path-vector nature requires fewer computational resources than OSPF's link-state calculations and scales better with large topologies. TRUE.
D . When EBGP is used on the underlay network, each group of active-active leaf nodes is deployed in an AS: This is true. In EBGP designs, active-active leaf nodes (e.g., M-LAG) are typically in the same Autonomous System (AS) to simplify routing, using iBGP or route reflectors. TRUE.
Thus, B is the false statement because multi-area OSPF is supported, not just single-area.
質問 # 45
M-LAG configuration consistency check classifies device configurations into key configurations (Type 1) and common configurations (Type 2). This check can be performed in strict or loose mode based on the processing mode when key configurations are inconsistent. Which of the following statements is false about M-LAG configuration consistency check?
- A. In loose mode, if Type 1 configurations of the two M-LAG member devices are inconsistent, the member interface on the M-LAG backup device is in Error-Down state and an alarm is generated, indicating that Type 1 configurations on the two devices are inconsistent.
- B. If Type 1 configurations of the two M-LAG member devices are inconsistent, certain problems may occur, such as loops and long-period packet loss when the status is normal.
- C. If Type 2 configurations of the two M-LAG member devices are inconsistent, the M-LAG running status may be abnormal. Compared with Type 1 configuration problems, Type 2 configuration problems are more likely to be detected and have less impact on the network.
- D. If Type 2 configurations of the two M-LAG member devices are inconsistent, an alarm that indicates key and common configuration inconsistencies is generated.
正解：D
解説：
To identify the false statement, we evaluate each option based on standard M-LAG documentation, such as Huawei's and Arista's guidelines, which are commonly referenced in HCIP-Data Center Network training.
Option A: In loose mode, if Type 1 configurations of the two M-LAG member devices are inconsistent, the member interface on the M-LAG backup device is in Error-Down state and an alarm is generated, indicating that Type 1 configurations on the two devices are inconsistent.
Evaluation: This statement is true. In loose mode, inconsistencies in Type 1 (key) configurations are still critical, as they can affect M-LAG operation. According to Huawei M-LAG Configuration Guide, when Type 1 configurations are inconsistent in loose mode, the system may place the member interface on the backup device into an Error-Down state and generate an alarm to alert administrators. This ensures that critical issues are flagged, even in loose mode, to prevent loops or packet loss.
Conclusion: True.
Option B: If Type 1 configurations of the two M-LAG member devices are inconsistent, certain problems may occur, such as loops and long-period packet loss when the status is normal.
Evaluation: This statement is true. Type 1 configurations are essential for M-LAG operation, and inconsistencies can lead to severe network issues. For example, mismatched LACP settings or VLAN mappings can create loops or cause packet loss, as noted in Arista M-LAG Documentation. These problems can persist even when the system appears normal, making consistency checks critical for troubleshooting and O&M.
Conclusion: True.
Option C: If Type 2 configurations of the two M-LAG member devices are inconsistent, the M-LAG running status may be abnormal. Compared with Type 1 configuration problems, Type 2 configuration problems are more likely to be detected and have less impact on the network.
Evaluation: This statement is true. Type 2 (common) configurations, such as QoS or STP settings, are less critical but can still affect network performance. According to Huawei M-LAG Best Practices, Type 2 inconsistencies are often detected during consistency checks but have a lower impact on M-LAG operation compared to Type 1 issues. They are also more likely to be flagged during monitoring, as they are less severe and easier to resolve.
Conclusion: True.
Option D: If Type 2 configurations of the two M-LAG member devices are inconsistent, an alarm that indicates key and common configuration inconsistencies is generated.
Evaluation: This statement is false. While Type 2 (common) configuration inconsistencies are detected during consistency checks, they do not typically trigger alarms, especially alarms that specifically indicate both key and common configuration inconsistencies. According to Huawei M-LAG Configuration Guide and Arista M-LAG Documentation, Type 2 inconsistencies may be logged or reported in system logs but are not severe enough to generate critical alarms unless they significantly impact network operation. Alarms are more commonly associated with Type 1 (key) configuration inconsistencies, as they pose a higher risk to M-LAG functionality.
Conclusion: False.
質問 # 46
Which of the following statements are true about the Easy mode? (Select All that Apply)
- A. iMaster NCE-Fabric automatically generates configuration script files.
- B. On iMaster NCE-Fabric, you need to manually create and configure fabric resource pools, managed devices, device groups, device roles, tenants, and VPCs one by one in the Configuration Wizard menu.
- C. Layer 2 and Layer 3 basic services in a VPC are orchestrated on the Easy page.
- D. This mode has low networking requirements.
正解：A、C、D
解説：
The Easy mode in Huawei's iMaster NCE-Fabric simplifies network deployment for basic VXLAN fabrics. Let's evaluate each statement:
A . This mode has low networking requirements: This is true. Easy mode is designed for simple topologies (e.g., small spine-leaf networks) with minimal configuration complexity. TRUE.
B . iMaster NCE-Fabric automatically generates configuration script files: This is true. Easy mode automates script generation based on user inputs, reducing manual effort. TRUE.
C . On iMaster NCE-Fabric, you need to manually create and configure fabric resource pools, managed devices, device groups, device roles, tenants, and VPCs one by one in the Configuration Wizard menu: This is false. Easy mode automates these tasks, minimizing manual configuration compared to advanced modes. FALSE.
D . Layer 2 and Layer 3 basic services in a VPC are orchestrated on the Easy page: This is true. Easy mode supports automated orchestration of L2 (e.g., BDs) and L3 (e.g., gateways) services within a VPC. TRUE.
Thus, A, B, and D are true statements about Easy mode.
質問 # 47
In network overlay, both endpoints of a VXLAN tunnel are physical switches.
- A. FALSE
- B. TRUE
正解：A
解説：
In a network overlay, VXLAN (Virtual Extensible LAN) tunnels extend Layer 2 networks over a Layer 3 underlay, commonly implemented in Huawei's data center solutions. The endpoints of a VXLAN tunnel are VXLAN Tunnel Endpoints (VTEPs), which encapsulate and decapsulate traffic.
VTEP Roles: VTEPs can be physical switches (e.g., Huawei CloudEngine series), virtual switches (e.g., Open vSwitch on a hypervisor), or routers with VXLAN support. The endpoints are defined by their IP addresses, not their physical nature.
Deployment Flexibility: In modern data centers, VXLAN tunnels often connect physical switches to virtualized environments where VTEPs reside on hypervisors or servers hosting VMs. For example, a VM's vNIC might connect to a virtual switch (VTEP) that tunnels to a physical switch VTEP. Thus, both endpoints are not always physical switches; one or both can be virtual.
The statement is FALSE (B) because both endpoints of a VXLAN tunnel are not necessarily physical switches; they can include virtual VTEPs in hypervisors or other devices.
質問 # 48
Which of the following statements is false about VM service traffic in the computing scenario?
- A. Inter-VPC traffic must pass through the firewall.
- B. Traffic between vSwitches on virtual servers and server leaf nodes is VLAN encapsulated.
- C. Traffic between VAS devices and service leaf nodes is VLAN encapsulated.
- D. Traffic inside a fabric is VXLAN encapsulated.
正解：A
解説：
In Huawei's CloudFabric computing scenario, VM service traffic involves virtualized environments with VXLAN overlays and traditional VLANs. Let's evaluate each statement:
A . Traffic inside a fabric is VXLAN encapsulated: This is true. Within a CloudFabric network, VXLAN encapsulation is used to transport traffic across the fabric, enabling overlay networking for VMs. TRUE.
B . Inter-VPC traffic must pass through the firewall: This is false. Inter-VPC (Virtual Private Cloud) traffic can be routed directly between VPCs using a gateway or router (e.g., with EVPN Type 5 routes) without necessarily passing through a firewall, depending on security policies. Firewalls are optional for inter-VPC traffic, not mandatory. FALSE.
C . Traffic between VAS devices and service leaf nodes is VLAN encapsulated: This is true. Value-Added Services (VAS) devices (e.g., load balancers) often connect to service leaf nodes using VLAN encapsulation, especially in traditional or hybrid deployments. TRUE.
D . Traffic between vSwitches on virtual servers and server leaf nodes is VLAN encapsulated: This is true. Traffic from virtual switches (vSwitches) on hypervisors to physical server leaf nodes typically uses VLAN encapsulation over the physical NICs, before VXLAN overlay if applicable. TRUE.
Thus, B is the false statement because inter-VPC traffic does not always require a firewall.
質問 # 49
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