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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Network Security and Services: Covers essential network security mechanisms including ACLs, AAA, NAT, and basic firewall concepts to protect network infrastructure.
Topic 2
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
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 (Q61-Q66):

NEW QUESTION # 61
On an STP network, an administrator wants SW2 to be elected as the root bridge. Which of the following methods can be used to achieve this goal?

Answer: C

Explanation:
In STP, the root bridge is elected based on the lowest bridge ID (BID). A BID is composed of the bridge priority and the MAC address of the switch. The device with the smallest BID becomes the root bridge.
Therefore, if an administrator wants SW2 to become the root bridge, the most direct and correct method is to configure a lower system priority on SW2, making option C correct.
Option A is incorrect because port priority affects port-role selection in some tie-breaking scenarios, but it does not determine root-bridge election. Option B is the opposite of what is required, because a higher system priority makes the BID larger and reduces the chance of being elected as root. Option D is also incorrect because root path cost is used by non-root bridges to select the best path to the existing root bridge; it does not determine which switch becomes the root bridge in the first place. HCIA-Datacom stresses that bridge priority tuning is the standard administrative method used to control root bridge placement in campus networks for stable and predictable Layer 2 topology design.


NEW QUESTION # 62
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: A

Explanation:
An Eth-Trunk will remain down if there is a configuration inconsistency between the two ends, but it is not specifically caused by missing member interfaces on the remote device alone. Even if SW2 has not added member interfaces, the local configuration and negotiation state (such as LACP or static Eth-Trunk consistency checks) would still determine the status, and other mismatch conditions could also lead to the same symptom. Therefore, the stated cause is not the only or guaranteed reason for the Eth-Trunk being down, making the statement incorrect.


NEW QUESTION # 63
An enterprise has deployed a Huawei WLAN, but some STAs cannot associate with wireless signals. To troubleshoot this issue, you log in to the WAC and run related commands. The command output is as follows.
According to the command output, which of the following is the possible cause of the STA association failure?

Answer: B

Explanation:
The command output in the exhibit shows that both AP radios are enabled, so a disabled radio is not supported by the evidence. The 5 GHz radio has relatively low channel utilization, while the 2.4 GHz radio reports channel utilization of approximately 90 percent. Such a high utilization value indicates that the air interface is heavily occupied by transmissions or interference. Huawei WLAN troubleshooting guidance identifies a busy air interface and a heavily loaded AP as possible causes of STA association failures because management and authentication frames may be delayed or lost when contention is severe. The displayed radio information alone does not prove that the affected STAs are in a blacklist or absent from a whitelist; those conditions require separate STA or VAP access-control information. Therefore, option A is the only choice directly supported by the command output. The correct troubleshooting interpretation is that excessive channel utilization on the radio can make the air interface busy and prevent some STAs from completing association successfully. The verified answer is A.


NEW QUESTION # 64
Which of the following IPv6 addresses is a link-local address?

Answer: C

Explanation:
In IPv6, link-local addresses use the prefix FE80::/10. These addresses are automatically generated or configured for communication on the local link only and are not routed across Layer
3 boundaries. Therefore, among the given options, FE80::FA63:DBFF:FE9E:10 is the correct link- local address, making option C correct.


NEW QUESTION # 65
In the centralized network architecture (WAC + Fit AP), Fit APs must go online before the WAC can manage and control them. Which of the following statements are true about the AP onboarding process? (Choose all that apply.)

Answer: A,B,C,D

Explanation:
In Huawei WAC + Fit AP centralized architecture, AP onboarding uses the CAPWAP protocol, which includes DTLS encryption to secure control and data channels. During CAPWAP establishment, the AP and WAC also use Echo messages to verify reachability and ensure the data tunnel is functioning properly. Before the CAPWAP session can be established, the AP must discover and obtain the WAC's CAPWAP address through mechanisms such as DHCP, DNS, or broadcast discovery. Additionally, AP whitelist authentication is commonly used for security control, meaning an AP that is not authorized (for example, not in the MAC whitelist) is prevented from going online.


NEW QUESTION # 66
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