H12-921_V1.0試験問題集を使って一日でHCIE-Data Center試験合格目指す（最新の241解答)
H12-921_V1.0試験正確な問題集、学習ノートと理論
Huawei H12-921_V1.0（HCIE-DATA Center Network（writde）v1.0）認定試験は、データセンターネットワーキングの分野の専門家にとって非常に人気のある認定です。この認定は、データセンターネットワークの設計、構築、管理に必要なスキルと知識を検証するように設計されています。この試験では、ネットワークアーキテクチャ、クラウドコンピューティング、仮想化、ストレージ、セキュリティなど、さまざまなトピックをカバーしています。
試験は、データセンターネットワークエンジニアリングの理論的知識を試すために設計された筆記問題から構成されています。問題はチャレンジングであり、候補者には批判的思考と実世界のシナリオに知識を適用する必要があります。試験はクローズドブック形式で実施されます。つまり、試験中に参照資料を使用することはできません。
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。
質問 # 131
Which of the following RDMA networks can implement RDMA across network segments over Ethernet
- A. iWARP
- B. InfiniBand
- C. RoCE v1
- D. RoCE v2
正解：A、D
質問 # 132
Which of the following descriptions of the NSH business chain is wrong?
- A. NSH-Unaware SF does not recognize NSH packets and discards them upon receipt
- B. Through the metadata carried in NSH packets, the packets can be parsed on NSH-Aware SF without encapsulation or decapsulation operations to know the information of the packet tape, which improves the efficiency of packet parsing and improves the forwarding performance
- C. SFC Proxy receives packets from SFR on behalf of SFF and its associated NSH-Unaware representatives, deletes the NSH encapsulation information, and sends packets to through local logical components NSH-Unaware SF
- D. The network that carries NSH packets must be a VXLAN network
正解：D
解説：
Parse: NSH-Unaware SF: If the NSH packet is not recognized, the NSH-Proxy configuration needs to be delivered to the SFF associated with the NSH-Unaware SF, that is, deleted NSH encapsulates the information and then sends it to NSH-Unaware SF for processing. Through the metadata carried in the NSH header, the information carried by the packet can be known without encapsulation/decapsulation operations when the packet is parsed on the service node, which improves the efficiency of packet parsing and thus improves the forwarding performance.
質問 # 133
When the cloud platform creates a VM resource, it needs to call multiple components, such as Nova, Cinder, Glance, etc., and the authentication and authentication between the components depends on which of the following options?
- A. Keystone
- B. Freezer
- C. Zun
- D. Watcher
正解：A
質問 # 134
What are the correct descriptions of VAS service provisioning in the network virtualization scenario of Huawei CloudFabric Solution?
- A. IMaster NCE-Fabric supports route configuration and VAS service delivery from Huawei VAS to Fabric network
- B. IMaster NCE-Fabric supports backhaul routes delivered to managed third-party VASs to the Fabric network
- C. IMaster NCE-Fabric supports business automation orchestration of third-party VAS, as long as the VAS is within the scope of the controller
- D. IMaster NCE-Fabric supports the delivery of route configuration from the Fabric network to the VAS side, regardless of whether the VAS is managed by the controller or not
正解：A、B、D
解説：
Analysis: Option D. Huawei NCEfabric does not support service automation orchestration for 3rd VAS in network virtualization scenarios.
質問 # 135
Which of the following objects does the OpenStackFWaaSv model consist of?
- A. Firewall
- B. Firewall Policy
- C. FirewalAction
- D. Firewall Rule
正解：A、B、D
質問 # 136
The data center CloudFabric solution is ahead of competitors in terms of competitiveness and cases, which of the following is not a function of the CloudFabric solution?
- A. NSH and microsegmentation
- B. The control supports the deployment of a single controller
- C. Active/standby control clusters
- D. Simulation verification is supported
正解：B
質問 # 137
Which of the following layers does the CloudFabric cloud-network integration solution architecture consist of?
- A. Network service layer
- B. Network Analysis/Control Layer
- C. Storage access layer
- D. Business presentation layer/collaboration layer
正解：A、B、D
解説：
Parse:
質問 # 138
When the IPv network of a data center is connected to multiple ISP ports and provides IPv service access, which of the following technologies can be used to achieve address translation between IPvs and IPvs?
- A. NAT
- B. NAT44
- C. NAT66
- D. NAT64
正解：C
質問 # 139
Which of the following falls under the technical layer of the AI industry?
- A. Autonomous driving
- B. artificial intelligence
- C. robot
- D. machine learning
正解：D
質問 # 140
In the CloudFabric network virtualization scenario, after iMaster NCE-Fabric passes VLAN information to VMM, VMM creates which of the following corresponds to it?
- A. VDS
- B. EIP
- C. PortGroup
- D. YC
正解：C
質問 # 141
As shown in the figure in the Multi-PoD solution of the CloudFabric solution, in the active/standby egress scenario, when the Border Leaf is the primary failure, the VM belonging to VPC1 is located What traffic path will be used to access the external network?
- A. 0
- B. 1
- C. 2
- D. 3
正解：B
解説：
Analysis: The borderleaf is mainly suspended, and the traffic is accessed to the Internet through the border leaf standby.
質問 # 142
There are three main ways to achieve I virtualization: full virtualization, paravirtualization, and hardware-assisted virtualization. The following description of 1/O anthropomorphism, what are the correct terms?
- A. Paravirtualization: Introduce a privileged virtual machine (Doman0) to run the hardware driver, and the rest of the GuestOS is accessed by 1/0 devices through the privileged virtual machine
- B. Full virtualization: Completely use software to emulate real hardware, such as a keyboard and mouse
- C. Hardware-Assisted Virtualization: The 1/O device driver is installed directly in the virtual machine operating system and can be used without any modification to the operating system
- D. Compared with para-virtualization and hardware-assisted virtualization, full virtualization has the lowest latency and the best performance
正解：A、B、C
質問 # 143
Which of the following descriptions of BD in a VXLAN network is correct?
- A. In a VXLAN network, the BD and the VLAN tag of the connected service packet form a 1:N mapping
- B. BD messages are encapsulated in VXLAN packets to identify a large Layer 2 broadcast domain
- C. Multiple BDs can share a single VBDIF interface
- D. In a VXLAN network, BD is a local concept, and as long as the L2 VNI is the same on different leaves, it can be considered to be in the same large Layer 2 broadcast domain
正解：D
解説：
Analysis: Option A is incorrect, and the BD information exists only in Huawei switches and cannot appear in vxlan packets. Option B. Option B is incorrect, under the service access mode of the L2 sub-interface There is a 1:n relationship between the BD and the VLAN, and the BD and the VLAN are in the VLAN service access mode 1:1 relationship. Option D is not right, each bd can have its own vbdif, there is no sharing.
質問 # 144
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. ARP entries
- B. FIB entries
- C. MAC entries
- D. ND table entry
正解：C
質問 # 145
In the CloudFabric network virtualization scenario, which of the following interfaces does iMaster NCE-Fabric use to obtain VM online information?
- A. gRPC
- B. SNMP
- C. WebService
- D. NETCONF
正解：C
解説：
Analysis: In the computing linkage scenario of network virtualization, nce-fabric and vmm (vcenter) are connected through the webservice interface, and when the vm is online, vcenter Report events to nce-fabric via webservice.
質問 # 146
Which of the following descriptions of VPCs and their components is wrong in CloudFabric Data Center Networking?
- A. One user port corresponds to one VM
- B. A logical switch can be associated with only one subnet
- C. A logical router can be associated with multiple logical switches
- D. A VPC is an isolated network within a tenant, and there can be multiple VPCs within a tenant
正解：B
解説：
Resolution: Option A is correct, VPC is a secure and isolated network environment within a tenant, and there can be more than one. Option B is incorrect, a logical switch can be associated with multiple subnets. Option C is correct, and a logical router can be associated with multiple logical switches during VPC orchestration.
The D option is correct, one user port corresponds to a VM with an IP . So when you have multiple VMs, you need to have multiple user ports, and each user port corresponds to a logical port.
質問 # 147
In the Huawei CloudFabric solution, the network controller uses the NETCONF device to deliver configurations. Which of the following encodings does NETCONF information use?
- A. HTML
- B. PROTOBUF
- C. XML
- D. JSON
正解：C
質問 # 148
What are the correct items in the following descriptions of the design of the CloudFabric intelligent lossless multivariate computing physical network?
- A. The number of Spine switches needs to be considered based on the total number of upstream interfaces across all Leaf switches
- B. Leaf switches can be deployed independently
- C. You can choose a two-layer or three-layer networking architecture based on the scale
- D. To ensure high reliability on the access side, the server must be single-homed to the LEAF switch
正解：A、B、C
質問 # 149
In the CloudFabric cloud-network integration scenario, when the underlay network is manually deployed, which of the following options does not need to be deployed on the firewall?
- A. Configure hot standby for two machines in load balancing mode
- B. Enable the NETCONF function
- C. Set the default security policy to Allow
- D. Turn on the virtual system
正解：A
解説：
Parse:
質問 # 150
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