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古く時から一寸の光陰軽るんずべからずの諺があって、あなたはどのぐらい時間を無駄にすることができますか？現時点からShikenPASSのH12-893_V1.0問題集を学んで、時間を効率的に使用するだけ、H12-893_V1.0知識ポイントを勉強してHuaweiのH12-893_V1.0試験に合格できます。短い時間でH12-893_V1.0資格認定を取得するような高いハイリターンは嬉しいことではないでしょうか。
| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | HCIP-Data Center Network V1.0 (H12-893) Exam |
| Exam Number: | H12-893_V1.0 |
| Certificate Validity Period: | 3 years |
| Available Languages: | English, Simplified Chinese |
| Exam Format: | Multiple choice, Single choice |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIA-Data Center Network HCIE-Data Center Network |
| Real Exam Qty: | 60-70 |
| Exam Price: | ~200 USD (varies by region) |
| Exam Duration: | 90 minutes |
| Recommended Training: | Huawei Talent Online Training HCIP Data Center Network Training Resources |
| Exam Registration: | Pearson VUE Huawei Exams Huawei Certification Portal |
| Sample Questions: | Huawei H12-893_V1.0 Sample Questions |
| Exam Way: | Online proctored exam or authorized test center (Pearson VUE) |
| Pre Condition: | HCIA-Data Center Network or equivalent networking knowledge is recommended |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification |
当社は、お客様に信頼できる学習プラットフォームを提供できることを嬉しく思います。 H12-893_V1.0クイズトレントは、急速な発展の世界のさまざまな分野の多くの専門家や教授によって設計されました。同時に、H12-893_V1.0試験問題集に質問がある場合は、プロの個人が短時間であなたの質問に答えることができます。つまり、H12-893_V1.0クイズ準備を購入することを選択した場合、当社が提供する権威ある学習プラットフォームを楽しむことができます。最新のH12-893_V1.0試験トレントが最適な選択になると確信しています。さらに重要なことは、最新のH12-893_V1.0試験トレントのデモを無料で入手できることです。
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質問 # 43
The figure shows an incomplete VXLAN packet format.
Which of the following positions should the VXLAN header be inserted into so that the packet format is complete?
正解：B
解説：
VXLAN (Virtual Extensible LAN) is a tunneling protocol that encapsulates Layer 2 Ethernet frames within UDP packets to extend VLANs across Layer 3 networks, commonly used in Huawei's CloudFabric data center solutions. The provided figure illustrates an incomplete VXLAN packet format with the following sequence:
Outer Ethernet Header (Position 1): Encapsulates the packet for transport over the physical network.
Outer IP Header (Position 2): Defines the source and destination IP addresses for the tunnel endpoints.
UDP Header (Position 3): Carries the VXLAN traffic over UDP port 4789.
Inner Ethernet Header (Position 4): The original Layer 2 frame from the VM or endpoint.
Inner IP Header (Position 5): The original IP header of the encapsulated payload.
Payload (Position 6): The data being transported.
The VXLAN header, which includes a 24-bit VXLAN Network Identifier (VNI) to identify the virtual network, must be inserted to complete the encapsulation. In a standard VXLAN packet format:
The VXLAN header follows the UDP header and precedes the inner Ethernet header. This is because the VXLAN header is part of the encapsulation layer, providing the VNI to map the inner frame to the correct overlay network.
The sequence is: Outer Ethernet Header → Outer IP Header → UDP Header → VXLAN Header → Inner Ethernet Header → Inner IP Header → Payload.
In the figure, the positions are numbered as follows:
1: Outer Ethernet Header
2: Outer IP Header
3: UDP Header
4: Inner Ethernet Header
The VXLAN header should be inserted after the UDP header (Position 3) and before the Inner Ethernet Header (Position 4). However, the question asks for the position where the VXLAN header should be "inserted into," implying the point of insertion relative to the existing headers. Since the inner Ethernet header (Position 4) is where the encapsulated data begins, the VXLAN header must be placed just before it, which corresponds to inserting it at the transition from the UDP header to the inner headers. Thus, the correct position is D (2) if interpreted as the logical insertion point after the UDP header, but based on the numbering, it aligns with the need to place it before Position 4. Correcting for the figure's intent, the VXLAN header insertion logically occurs at the boundary before Position 4, but the options suggest a mislabeling. Given standard VXLAN documentation, the VXLAN header follows UDP (Position 3), and the closest insertion point before the inner headers is misinterpreted in numbering. Re-evaluating the figure, Position 2 (after Outer IP Header) is incorrect, and Position 3 (after UDP) is not listed separately. The correct technical insertion is after UDP, but the best fit per options is D (2) as a misnumbered reference to the UDP-to-inner transition. However, standard correction yields after UDP (not directly an option), but strictly, it's after 3. Given options, D (2) is the intended answer based on misaligned numbering.
Corrected answer: After re-evaluating the standard VXLAN packet structure and the figure's
質問 # 44
In Huawei CloudFabric Solution, iMaster NCE-Fabric uses SNMP to collect alarms and logs of physical devices and vSwitches.
正解：B
解説：
In Huawei's CloudFabric Solution, iMaster NCE-Fabric is the SDN controller responsible for managing physical devices and virtual switches (vSwitches). The method of data collection is critical for network monitoring.
SNMP Usage: Simple Network Management Protocol (SNMP) is a traditional method for collecting alarms and logs from network devices. However, Huawei's modern SDN controllers, including iMaster NCE-Fabric, primarily use telemetry (e.g., gRPC, NETCONF) for real-time data collection from physical devices and vSwitches. Telemetry provides higher efficiency and granularity compared to SNMP.
CloudFabric Approach: The solution leverages telemetry-based data collection, as documented in FabricInsight and iMaster NCE-Fabric guides, to gather alarms, logs, and performance metrics.
SNMP may be supported as a legacy option but is not the primary method in this context.
The statement is FALSE (B) because iMaster NCE-Fabric predominantly uses telemetry, not SNMP, for collecting alarms and logs.
質問 # 45
VXLAN is a network virtualization technology that uses MAC-in-UDP encapsulation. What is the destination port number used during UDP encapsulation?
正解：A
解説：
VXLAN (Virtual Extensible LAN) is a network overlay technology that encapsulates Layer 2 Ethernet frames within UDP packets to extend Layer 2 networks over Layer 3 infrastructure, widely used in Huawei's CloudFabric data center solutions. The encapsulation process, often referred to as "MAC-in-UDP," involves wrapping the original Ethernet frame (including MAC addresses) inside a UDP packet.
UDP Encapsulation: The VXLAN header follows the UDP header, and the destination UDP port number identifies VXLAN traffic. The Internet Assigned Numbers Authority (IANA) has officially assigned UDP port 4789 as the default destination port for VXLAN.
Options Analysis:
A). 4787: This is not a standard VXLAN port and is not recognized by IANA or Huawei documentation.
B). 4789: This is the correct and widely adopted destination port for VXLAN, as specified in RFC
7348 and implemented in Huawei's VXLAN configurations.
C). 4790: This port is not associated with VXLAN and is unused in this context.
D). 4788: This is not a standard VXLAN port; it may be confused with other protocols but is not correct for VXLAN.
Thus, the destination port number used during UDP encapsulation in VXLAN is B (4789), aligning with Huawei's VXLAN implementation standards.
質問 # 46
Which feature enables multiple physical interfaces between switches to operate as a single logical connection while providing redundancy and higher bandwidth?
正解：A
解説：
LACP aggregates several physical links into one logical interface, increasing bandwidth while providing redundancy. Traffic can continue across remaining links if one member fails, improving both availability and resource utilization.
質問 # 47
Which underlay characteristic is most important for ensuring reliable VXLAN overlay communication across a spine-leaf fabric?
正解：A
解説：
VXLAN relies entirely on an IP underlay. Every VTEP must reach every other VTEP through stable IP routing. Layer 2 mechanisms such as STP or native VLAN settings are not primary overlay requirements.
質問 # 48
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