HCIE-Data Center Network (Written) V1.0練習テスト2024年最新のH12-921_V1.0ストレスなしで合格させちゃう！
練習HCIE-Data Center H12-921_V1.0問題集オンライン試験練習テストと詳細な解説付き！
Huawei H12-921_V1.0 認定試験は、大量の準備と学習を必要とする厳しい試験です。この試験に合格した候補者は、競争力のある求人市場で差別化を図ることができ、Huawei の技術とソリューションを使用して複雑なデータセンターネットワークを設計、展開、および管理するための知識とスキルを持っています。
Huawei H12-921_V1.0は、データセンターネットワークエンジニアリングの分野における候補者の知識と技能をテストする試験です。この試験は、データセンターネットワークを設計、展開、および管理する経験を持つプロフェッショナルを対象としています。この試験は、情報通信技術の分野で最も権威ある資格プログラムの1つであるHuawei Certified ICT Expert（HCIE）認定プログラムの一部です。
質問 # 44
Which of the following is responsible for managing network resources in the core project of OpenStack resource management?
- A. Nova
- B. Swift
- C. Neutron
- D. Ironic
正解：C
解説：
Resolution: Neutron manages network resources in OpenStack
質問 # 45
What are the correct terms of the following description of ECN high and low thresholds?
- A. The queue cache is above the low threshold but below the high threshold, and the closer it is to the high threshold, the higher the probability of tagging
- B. If the queue cache is higher than the high threshold, all packets are discarded
- C. When the queue cache is above the high threshold, all ECN tokens are performed
- D. When the queue cache falls below a low threshold, no ECN tagging is performed
正解：C、D
質問 # 46
Which of the following scenarios can achieve L interoperability between data centers?
- A. SegmentVXLAN
- B. Hub-Spoke
- C. VLAN Hand-off
- D. End-to-end VXLAN
正解：A、C、D
質問 # 47
In the CloudFabric network service open programmable overall solution, which component is responsible for southbound interconnection with heterogeneous network devices?
- A. AOC
- B. Runbook
- C. FabricInsight
- D. Business systems
正解：A
解説：
Analysis: AOC is an open platform that can upload SND packages from corresponding vendors and support interconnection with third-party NEs.
質問 # 48
How many core-layer switches are required in a typical 4-element Fat-Tree topology in an HPC solution?
- A. 0
- B. 1
- C. 2
- D. 3
正解：D
質問 # 49
Network-wide intelligent O&M is a feature of Huawei's CloudFabric solution, which provides intelligent O&M compared with traditional device-centric O&M It is centered on which of the following, minutes Level of identifying cyber risks?
- A. Business
- B. Hardware
- C. Configuration
- D. Agreement
正解：A
質問 # 50
If a company provides services with large bursts of traffic, large gaps in business needs between peaks and valleys, and a wide distribution of users, which of the following methods should the company adopt to deploy its services based on cost and user experience considerations?
- A. Edge DC
- B. Two places and three centers
- C. Hybrid cloud
- D. Intra-city active-active
正解：C
解説：
Analysis: Typical application scenarios of hybrid cloud: business bursts, application load expansion: In order to cope with the peak demand caused by seasonality or emergencies, public cloud resources are temporarily leased to quickly improve business response capabilities and computing processing capabilities.
質問 # 51
What are the correct items in the following descriptions of the design of the CloudFabric intelligent lossless multivariate computing physical network?
- A. You can choose a two-layer or three-layer networking architecture based on the scale
- B. To ensure high reliability on the access side, the server must be single-homed to the LEAF switch
- C. Leaf switches can be deployed independently
- D. The number of Spine switches needs to be considered based on the total number of upstream interfaces across all Leaf switches
正解：A、C、D
質問 # 52
Which of the following is the destination MAC address of the PFC backpressure frame?
- A. 0280-c200-0001
- B. 0100-5e00-0003
- C. 0080-c200-0002
- D. 0180-c200-0001
正解：D
解説：
Parse:
質問 # 53
In the CloudFabric solution, iMaster NCE-Fabric supports network O&M based on physical topology. When the color of a device in a physical topology is red, which of the following meanings is indicated?
- A. Both the device and the link are normal
- B. There is an emergency alarm
- C. The link is disconnected and a non-emergency alarm exists
- D. The device is offline
正解：B
質問 # 54
At which layer of headers is the ECN tag located in the message?
- A. UDP layer header
- B. Ethernet layer header
- C. IP Layer Header
- D. TCP layer header
正解：C
解説：
Parsing: ECN congestion markers use the last two bits of the ToS field in the header of the IP packet
質問 # 55
The CPU command defines a hierarchical protection domain, in which of the following levels has the highest authority to directly operate the hardware?
- A. Ring
- B. Ring0
- C. Ring1
- D. Ring2
正解：B
質問 # 56
When a Huawei switch enables any of the following functions, it can quickly manage and control access hosts?
- A. AI ECN
- B. IQCN
- C. INOF
- D. NPCC
正解：C
質問 # 57
What are the correct descriptions of VXLAN Overlay multicast in the following descriptions?
- A. When deploying multicast using PIM-SM mode, separate RPs need to be deployed on both the underlay and the overlay
- B. BGP NG MVPN carries I-PMSI information for I-PMSI tunnel establishment
- C. There is no need to deploy multicast in the underlay
- D. The VXLAN tunnel can still be configured as headend replication without special configuration
正解：A、B
解説：
Analysis: *The RP of the underlay multicast network needs to be configured in the VPN instance that carries the overlay multicast traffic for the overlay network RP of an overlay multicast network . That is, the RP of both the underlay and the overlay need to be configured in the same physical network (in the figure, Public VRF refers to the underlay ). The network control plane is not a VPN entity that carries specific services Example). * Since the access location of the overlay service multicast source is uncertain, the underlay multicast uses the ASM service model. *Configure PIM SM function enablement on all Layer 3 interfaces of Leaf and Spine interconnection, built on top of the PIM SM protocol Underlay multicast trees. *From the perspectives of network architecture, stability, and alleviating the pressure on VTEP devices, it is recommended that Spine do RP and publish the RP address to Underlay Network. To alleviate the burden of a single RP, implement RP backup, optimize the multicast data forwarding path, and deploy Anycast RP on 2 Spines with dual-node redundancy.
質問 # 58
Which of the following server components is used as a temporary place to store program instructions, data, and intermediate results during computation?
- A. CPU
- B. hard disk
- C. memory
- D. flash memory
正解：C
質問 # 59
In the Multi-Site solution of the CloudFabric solution, if you want to achieve Layer 2 communication between sites, which of the following interconnection methods can be selected?
- A. VLAN Hand-off
- B. Underlay way
- C. Segment VXLAN
- D. End-to-end VXLAN
正解：A、C
解説：
Analysis: There are three ways to implement inter-site interconnection in the Multi-Site solution : Segment VXLAN, L3 Underlay, and VLAN Hand-off. L3 Underlay mode: Layer 3 interconnection between Fabric underlays, through IGP or BGP Routes are cleared from the service CIDR block, VXLAN packets are directly decapsulated on the Fabric Gateway, and forwarded through the underlay based on IGP/BGP routes.
質問 # 60
When configuring micro-segmentation in an automated orchestration mode on iMaster NCE-Fabric, which of the following attributes can be used to create an EPG??
- A. Prefix and suffix based on the hostname
- B. According to the port number
- C. Based on MAC address or IP address
- D. Prefix and suffix based on the name of the virtual machine
正解：A、C、D
解説：
Parse:
質問 # 61
The Telemetry function of iMaster NCE-FabricInsight supports measurement for a variety of table entries, which of the following is not supported by Telemetry?
- A. FIB entries
- B. MAC entries
- C. ND table entry
- D. ARP entries
正解：B
質問 # 62
In the CloudFabric solution architecture, which of the following interfaces does the control layer interconnect with the application layer, receive the service instructions issued by the application layer, and return status information to the application layer?
- A. RESTful/RPC
- B. SNMP
- C. NETCONF
- D. OpenFlow
正解：A
解説：
Analysis: The application layer and the control layer communicate with each other through a RESTful interface.
質問 # 63
In the DCQCN algorithm, which of the following roles sends ECN set packets?
- A. RP
- B. NP
- C. DP
- D. CP
正解：D
質問 # 64
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