100% Pass Quiz 2026 Huawei H12-811_V2.0: Latest HCIA-Datacom V2.0 Valid Test Forum

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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
Topic 2
  • IP Technology Basics: Covers IPv4
  • IPv6 addressing, subnetting, routing fundamentals, and common routing protocols such as OSPF, RIP, and static routing.
Topic 3
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 4
  • WLAN Technology Basics: Covers wireless LAN standards, components such as APs and ACs, WLAN architecture, and basic configuration principles.
Topic 5
  • Data Communication Network Basics: Covers foundational concepts of data communication networks including network types, reference models (OSI
  • TCP-IP), and basic device roles.

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Huawei HCIA-Datacom V2.0 Sample Questions (Q66-Q71):

NEW QUESTION # 66
The administrator runs the interface Eth-Trunk 1 command to create Eth-Trunk 1 on SW1 and SW2. After the network is stable, the administrator runs the display interface brief command on SW1, and finds that Eth- Trunk 1 is Down, the states of its member interfaces are normal, and the configuration on SW1 is correct. The possible cause is that the member interfaces on SW2 are not added to Eth-Trunk 1.

Answer: B

Explanation:
The uploaded key marks this statement TRUE, but the Huawei VRP operating behavior makes FALSE the technically correct answer as the question is written. Creating Eth-Trunk 1 with the interface Eth-Trunk 1 command does not, by itself, enable LACP. The default Eth-Trunk working mode is manual load balancing on the relevant VRP platforms. In manual mode, the local switch does not depend on LACP negotiation with the remote switch to decide whether locally added, physically Up member interfaces can make the aggregation operational. If SW1 ' s member interfaces are physically normal and correctly added to Eth-Trunk
1, failing to add the corresponding SW2 interfaces to its Eth-Trunk can certainly break end-to-end forwarding, but it is not in itself a sufficient explanation for the local Eth-Trunk on SW1 being Down. In LACP mode, missing peer membership can prevent correct aggregation because LACPDUs are not exchanged as expected.
Since LACP mode is not specified here, option B is the verified answer.


NEW QUESTION # 67
When deploying a WLAN on a customer ' s live network, you find that a STA fails to access the WLAN during commissioning. Which of the following are possible causes? (Select all that apply)

Answer: A,B,C,D

Explanation:
Huawei ' s HCIA-Datacom WLAN troubleshooting material identifies several causes of wireless station access failures.
Option A is correct because excessive channel utilization causes contention, retransmissions, and degraded wireless communication. The training material indicates that channel utilization exceeding approximately
85% can prevent STAs from accessing the network reliably.
Option B is correct because the WAC can deny wireless client access through blacklist-based admission control.
Option C is correct because network faults may prevent DHCP messages from reaching their destination, leaving the STA without a valid IP address and preventing successful network connectivity.
Option D is correct because a defective wireless network adapter can prevent the STA from establishing or maintaining wireless communication.
Troubleshooting should distinguish failures during scanning, authentication, association, and IP address allocation.
Therefore, all four options represent possible causes.


NEW QUESTION # 68
On the network shown in the figure, the administrator creates Eth-Trunk 1 in manual mode on SW1 and SW2, and adds GE1/0/1 and GE1/0/2 on both switches to the Eth-Trunk. After the administrator runs the display interface brief command on SW1, the administrator finds that GE1/0/1 is Up and GE1/0/2 is Down. Which of the following statements is true about this scenario?

Answer: C

Explanation:
For an Eth-Trunk operating in manual load-balancing mode, the logical Eth-Trunk interface can remain Up as long as at least one member link is operational and properly added to the trunk. Therefore, if GE1/0/1 is Up and GE1/0/2 is Down, Eth-Trunk 1 can still stay Up, making option A correct.
Option B is incorrect because member interfaces in a manual Eth-Trunk do not need to be in identical physical states for the trunk itself to remain operational. Option C is also incorrect because there is no inherent rule here that two-member trunks must have both links active unless a separate minimum-links mechanism has been explicitly configured. No such condition is stated in the question. Option D is false because one of the key purposes of Eth-Trunk is redundancy; requiring all member interfaces to be Up would defeat that design advantage. HCIA-Datacom teaches that Eth-Trunk enhances link reliability by allowing continued forwarding when part of the bundle fails, provided the trunk still has an active forwarding member.


NEW QUESTION # 69
During WLAN deployment, a Fit AP fails to go online on the WAC. You log in to the WAC and run the display ap all command to check the AP status. The command output shows that the AP status is unauth, indicating that the AP fails the authentication. You therefore need to confirm this AP on the WAC to allow the AP to go online.

Answer: A

Explanation:
When a Fit AP status is unauth on a Huawei WAC, it means the AP has not been authenticated yet by the WAC authentication policy. In this case, the AP is blocked from going online until it is manually confirmed or passes an allowed authentication mode (such as MAC/SN authentication).
Therefore, confirming the AP on the WAC is required to allow it to go online.


NEW QUESTION # 70
The network administrator performs the configuration shown in the figure on SW1 and SW2. Which of the following statements are false about this scenario?

Answer: B,C,D

Explanation:
The exhibit shows GE1/0/2 as an access port in VLAN 3 on both switches, so PC2 and PC4 belong to the same Layer 2 broadcast domain. The inter-switch GE1/0/3 link is a trunk that permits VLANs 2 and 3, allowing VLAN 3 frames to pass between SW1 and SW2. Therefore, PC2 and PC4 can communicate at Layer
2, making statement B true. GE1/0/1 remains an access interface in the default VLAN 1 because no other default VLAN is configured. VLAN 1 is not permitted across the shown trunk, so PC1 cannot communicate with PC3 across the switches. PC1 and PC2 are also in different VLANs locally, and PC2 and PC3 are in different VLANs. Devices in different VLANs cannot exchange Layer 2 traffic directly; a Layer 3 gateway is required for inter-VLAN communication. Accordingly, statements A, C, and D are the false statements, which makes A, C, and D the correct selections.


NEW QUESTION # 71
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