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| Certification Vendor: | Huawei |
|---|---|
| Exam Name: | Huawei Certified ICT Professional - Data Center Network V1.0 |
| Exam Number: | H12-893_V1.0 |
| Exam Duration: | 90 minutes |
| Passing Score: | 600/1000 |
| Related Certifications: | HCIA-Data Center Network HCIE-Data Center Network |
| Exam Format: | Drag-and-drop, Multiple-choice, Single-choice, True/false |
| Real Exam Qty: | 60 |
| Available Languages: | English, Chinese |
| Certificate Validity Period: | 3 years |
| Exam Price: | 300 USD |
| Recommended Training: | HCIP-Data Center Network V1.0 Official Training |
| Exam Registration: | Pearson VUE Registration |
| Sample Questions: | Huawei H12-893_V1.0 Sample Questions |
| Exam Way: | Online or Onsite at Pearson VUE test centers |
| Pre Condition: | Recommended: HCIA-Data Center Network certification or equivalent knowledge |
| Official Syllabus URL: | https://e.huawei.com/en/talent/certification/exam/h12-893_v1.0 |
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NEW QUESTION # 54
A tenant requires communication only within its own virtual network despite sharing the same VXLAN infrastructure with multiple business units. Which identifier uniquely distinguishes VXLAN segments?
Answer: B
Explanation:
The VXLAN Network Identifier (VNI) provides up to approximately 16 million isolated Layer 2 segments. VLAN IDs are limited to 4094 usable values and therefore offer much smaller scalability than VXLAN VNIs.
NEW QUESTION # 55
Which of the following is not an advantage of link aggregation on CE series switches?
Answer: B
Explanation:
Link aggregation, often implemented using Link Aggregation Control Protocol (LACP) on Huawei CloudEngine (CE) series switches, combines multiple physical links into a single logical link to enhance network performance and resilience. The primary advantages include:
Load Balancing Supported (B): Link aggregation distributes traffic across multiple links based on hashing algorithms (e.g., source/destination IP or MAC), improving load distribution and preventing any single link from becoming a bottleneck.
Increased Bandwidth (C): By aggregating multiple links (e.g., 1 Gbps ports into a 4 Gbps logical link), the total available bandwidth increases proportionally to the number of links.
Improved Reliability (D): If one link fails, traffic is automatically redistributed to the remaining links, ensuring continuous connectivity and high availability.
However, Improved Forwarding Performance of Switches (A) is not a direct advantage.
Forwarding performance relates to the switch's internal packet processing capabilities (e.g., ASIC performance, forwarding table size), which link aggregation does not inherently enhance. While it optimizes link utilization, it doesn't improve the switch's intrinsic forwarding rate or reduce latency at the hardware level. This aligns with Huawei's CE series switch documentation, where link aggregation is described as enhancing bandwidth and reliability, not the switch's core forwarding engine.
NEW QUESTION # 56
Which of the following statements is false about centralized gateway deployment using BGP EVPN?
Answer: D
Explanation:
Centralized gateway deployment using BGP EVPN in Huawei's data center networks (e.g., CloudFabric) involves a gateway handling Layer 3 routing for VXLAN overlays. Let's evaluate each statement:
A). When configuring a VTEP, you need to create a Layer 2 BD and bind a VNI to the Layer 2 BD:
A Bridge Domain (BD) is a Layer 2 broadcast domain in VXLAN, and a Virtual Network Identifier (VNI) is bound to it to segment traffic. This is a standard step when configuring a VXLAN Tunnel Endpoint (VTEP) to map the overlay network. TRUE.
B). A VXLAN tunnel is identified by a pair of VTEP IP addresses and can be established if the local and remote VTEP IP addresses are reachable to each other at Layer 3: VXLAN tunnels are established between VTEPs using their IP addresses as endpoints. Layer 3 reachability (e.g., via underlay routing) is required for tunnel establishment. TRUE.
C). When BGP EVPN is used to dynamically establish a VXLAN tunnel, the local and remote VTEPs first establish a BGP EVPN peer relationship and then exchange BGP EVPN routes to transmit VNI and VTEP IP address information. A VXLAN tunnel is then dynamically established between them: In BGP EVPN, VTEPs establish a BGP peer relationship, exchange routes (e.g., Type 2 for MAC/IP or Type 3 for multicast), and share VNI and VTEP IP details, enabling dynamic tunnel setup. TRUE.
D). When configuring a VTEP, you need to create an EVPN Instance in the Layer 2 BD and configure an RD for the local EVPN instance. You do not need to configure an RT: An EVPN Instance (EVI) is created within a BD, and a Route Distinguisher (RD) is configured to make routes unique. However, Route Targets (RTs) are also required to control route import/export between EVPN peers, ensuring proper VNI and route distribution. Stating that RT configuration is not needed is incorrect, as RTs are essential for BGP EVPN operation. FALSE.
Thus, D is the false statement because RT configuration is necessary in centralized gateway deployment with BGP EVPN.
NEW QUESTION # 57
In ZTP networking, which of the following addresses can be delivered by a DHCP server? (Select All that Apply)
Answer: A,B,C
Explanation:
Zero Touch Provisioning (ZTP) in Huawei's CloudFabric automates device setup using DHCP. Let's evaluate each option:
A . Default gateway address: This is true. DHCP can deliver the default gateway address to configure routing for the device. TRUE.
B . SFTP server address: This is false. SFTP server addresses are not standard DHCP options; they may be configured manually or via other protocols (e.g., TFTP for boot files). FALSE.
C . DNS server address: This is true. DHCP can provide DNS server addresses (Option 6) for name resolution during ZTP. TRUE.
D . Temporary management IP address: This is true. DHCP assigns temporary IPs (e.g., Option 50) for management during initial provisioning in ZTP. TRUE.
Thus, A, C, and D can be delivered by a DHCP server in ZTP.
NEW QUESTION # 58
Assume that a VXLAN tunnel is monitored on a Huawei CE series switch and that the tunnel status is Down or the tunnel fails to be dynamically established. In this scenario, which of the following statements are true about how to check the cause of the fault? (Select All that Apply)
Answer: A,B,C,D
Explanation:
On Huawei CloudEngine (CE) series switches, VXLAN tunnel monitoring and troubleshooting involve specific commands to diagnose issues such as tunnel Down status or failed dynamic establishment.
Let's evaluate each option:
A). Run the display vxlan statistics command to check the cause of the fault: This command provides statistics on VXLAN tunnel traffic, including packet drops, encapsulation/decapsulation counts, and errors. It helps identify issues like misconfiguration or network congestion, making it a valid troubleshooting tool. TRUE.
B). Run the display vxlan peer command to check the cause of the fault on the peer device of the tunnel: This command displays information about VXLAN peers, including their IP addresses, VNIs, and reachability status. Checking the peer device's status can reveal connectivity or configuration mismatches, aiding fault diagnosis. TRUE.
C). Run the display vxlan troubleshooting command to check the causes of at most the latest five failures to dynamically establish a VXLAN tunnel: This command logs and displays troubleshooting details, including the latest five failure reasons for dynamic tunnel setup (e.g., BGP EVPN issues or reachability problems). This is a standard feature on Huawei CE switches.
TRUE.
D). Run the display vxlan troubleshooting command to check at most the latest five reasons why a VXLAN tunnel goes Down: This command also tracks reasons for tunnel Down events (e.g., underlay failure, peer unreachability), limited to the latest five incidents. This is consistent with Huawei's troubleshooting capabilities. TRUE.
All options A, B, C, and D are true, as they represent valid commands and approaches to troubleshoot VXLAN tunnel issues on Huawei CE switches.
NEW QUESTION # 59
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