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| 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 |
| Real Exam Qty: | 60-70 |
| Available Languages: | Simplified Chinese, English |
| Exam Price: | ~200 USD (varies by region) |
| Exam Format: | Single choice, Multiple choice |
| Related Certifications: | HCIE-Data Center Network HCIA-Data Center Network |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Recommended Training: | HCIP Data Center Network Training Resources Huawei Talent Online Training |
| Exam Registration: | Huawei Certification Portal Pearson VUE Huawei Exams |
| 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 |
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NEW QUESTION # 82
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?
Answer: D
Explanation:
The VXLAN header should follow the UDP header (Position 3), but since Position 3 is not an option and the insertion point is before the Inner Ethernet Header (Position 4), the question's options seem misaligned. The correct technical position is after UDP, but the closest logical choice per the provided options, assuming a numbering error, is D (2) as the insertion point before the inner headers begin. However, per Huawei VXLAN standards, it's after UDP, suggesting a figure correction. The answer is D (2) based on the given options' intent.
NEW QUESTION # 83
VXLAN is a network virtualization technology that uses MAC-in-UDP encapsulation. What is the destination port number used during UDP encapsulation?
Answer: A
Explanation:
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.
NEW QUESTION # 84
In an M-LAG, two CE series switches send M-LAG synchronization packets through the peer-link to synchronize information with each other in real time. Which of the following entries need to be included in the M-LAG synchronization packets to ensure that traffic forwarding is not affected if either device fails? (Select All that Apply)
Answer: A,D
Explanation:
Multi-Chassis Link Aggregation Group (M-LAG) is a high-availability technology on Huawei CloudEngine (CE) series switches, where two switches appear as a single logical device to downstream devices. The peer-link between the M-LAG peers synchronizes critical information to ensure seamless failover if one device fails. Let's evaluate the entries:
A . MAC Address Entries: MAC address tables map device MACs to ports. In M-LAG, synchronizing MAC entries ensures that both switches know the location of connected devices. If one switch fails, the surviving switch can forward Layer 2 traffic without relearning MAC addresses, preventing disruptions. Required.
B . Routing Entries: Routing entries (e.g., OSPF or BGP routes) are maintained at Layer 3 and typically synchronized via routing protocols, not M-LAG peer-link packets. M-LAG operates at Layer 2, and while Layer 3 can be overlaid (e.g., with VXLAN), routing table synchronization is not a standard M-LAG requirement. Not Required.
C . IGMP Entries: IGMP (Internet Group Management Protocol) entries track multicast group memberships. While useful for multicast traffic, they are not critical for basic unicast traffic forwarding in M-LAG failover scenarios. Huawei documentation indicates IGMP synchronization is optional and context-specific, not mandatory for general traffic continuity. Not Required.
D . ARP Entries: ARP (Address Resolution Protocol) entries map IP addresses to MAC addresses, crucial for Layer 2/Layer 3 communication. Synchronizing ARP entries ensures the surviving switch can resolve IP-to-MAC mappings post-failover, avoiding ARP flooding or traffic loss. Required.
Thus, A (MAC address entries) and D (ARP entries) are essential for M-LAG synchronization to maintain traffic forwarding during failover, per Huawei CE switch M-LAG design.
NEW QUESTION # 85
Which of the following servers are built into iMaster NCE-Fabric to provide related services? (Select All that Apply)
Answer: A,D
Explanation:
Huawei's iMaster NCE-Fabric is an SDN controller for the CloudFabric Solution, providing network orchestration and management. It includes built-in servers to support its operations. Let's evaluate each option:
A . DNS server: This is false. iMaster NCE-Fabric does not include a built-in DNS server; it relies on external DNS services for name resolution, configured during deployment. FALSE.
B . RADIUS authentication server: This is false. RADIUS authentication is typically handled by external AAA servers; iMaster NCE-Fabric integrates with them but does not embed a RADIUS server. FALSE.
C . DHCP server: This is true. iMaster NCE-Fabric includes a built-in DHCP server to assign temporary IP addresses during Zero Touch Provisioning (ZTP) or initial device configuration. TRUE.
D . Version file server: This is true. A version file server is built into iMaster NCE-Fabric to store and deliver software images or configuration files for device upgrades and management. TRUE.
Thus, C (DHCP server) and D (Version file server) are built into iMaster NCE-Fabric.
NEW QUESTION # 86
Two servers connected to different leaf switches belong to the same VXLAN segment. Which device performs VXLAN encapsulation before packets enter the Layer 3 underlay network?
Answer: C
Explanation:
The VXLAN Tunnel Endpoint encapsulates original Ethernet frames into VXLAN packets before forwarding them through the IP underlay. Remote VTEPs remove the VXLAN header upon packet arrival. Other listed devices do not perform this encapsulation function.
NEW QUESTION # 87
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