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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
  • IP Technology Basics: Covers IPv4
  • IPv6 addressing, subnetting, routing fundamentals, and common routing protocols such as OSPF, RIP, and static routing.
Topic 3
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
Topic 4
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 5
  • Typical Campus Networking Solution: Covers end-to-end campus network design scenarios, integrating switching, routing, security, and wireless technologies into a unified solution.

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Huawei HCIA-Datacom V2.0 Sample Questions (Q121-Q126):

NEW QUESTION # 121
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 # 122
On the switched network shown in the figure, STP is enabled on all devices. SW1 is the root bridge. The port costs are shown in the figure. Other parameters retain the default values. After the network is stable, which of the following ports are not root ports? (Select all that apply)

Answer: A,C,D

Explanation:
STP selects one root port on each non-root bridge based on the lowest accumulated path cost toward the root bridge.
SW1 is the root bridge, so SW3 selects GE1/0/2 as its root port because the direct path to SW1 has a cost of
10. Therefore, GE1/0/3 on SW3 is not a root port.
SW2 can reach the root through SW3 with a total cost of 30, which is lower than its direct path cost of 50.
Consequently, GE1/0/3 on SW2 becomes its root port, while GE1/0/1 and GE1/0/2 do not.
SW4 selects GE1/0/1 toward SW3 because that path provides a total root cost of 40.
Therefore, option C identifies a root port, whereas A, B, and D identify ports that are not root ports.


NEW QUESTION # 123
On the switched network shown in the figure, STP is enabled on all devices. SW1 is the root bridge. The port costs are shown in the figure. Other parameters retain the default values. After the network is stable, which of the following RPC values is calculated by SW4 for the path to SW1?

Answer: A

Explanation:
SW1 is the root bridge, so SW4 calculates its Root Path Cost (RPC) based on the lowest cumulative STP cost path to SW1. The direct link from SW4 to SW1 has a cost of 50, which is lower than all alternative paths through SW3 or SW2. Therefore, SW4 selects the direct path, resulting in an RPC of 50.


NEW QUESTION # 124
The domain to which a user belongs is determined by the user name used by the user to log in to the NAS device. If the domain name carried in the user name is not configured on the NAS device, the authentication fails.

Answer: A

Explanation:
This statement is false . On Huawei devices, the domain to which a user belongs is usually determined by the domain part carried in the user name, for example user@huawei.com. However, if the specified domain is not configured on the NAS device, authentication does not necessarily fail immediately . In many cases, the device can use a default domain for authentication processing, depending on the AAA configuration.
Huawei AAA supports both an administrator user default domain and a normal user default domain . If a user name does not match a configured domain, or the domain carried in the user name is unavailable, the device may fall back to the default domain and continue authentication according to the configured policy.
Therefore, the statement is incorrect because it treats authentication failure as unavoidable in every such case.
HCIA-Datacom emphasizes domain-based AAA processing because it allows different groups of users to use different authentication, authorization, and accounting methods. At the same time, learners must understand the function of default domains, which provide flexibility in real deployments and prevent unnecessary authentication failures in some login scenarios.


NEW QUESTION # 125
On the OSPF network shown in the figure, all IP addresses can communicate with each other. Then the following configurations are added on R1:
[R1] acl 3000
[R1-acl4-advance-3000] rule deny ip source 10.0.1.1 0.0.0.0
[R1-acl4-advance-3000] rule deny ip source 10.1.1.1 0.0.0.0
[R1-acl4-advance-3000] rule permit ip source 10.3.1.1 0.0.0.0
[R1-acl4-advance-3000] rule permit ip
[R1-acl4-advance-3000] quit
[R1] traffic classifier test
[R1-classifier-test] if-match acl 3000
[R1-classifier-test] quit
[R1] traffic behavior test
[R1-behavior-test] permit
[R1-behavior-test] quit
[R1] traffic policy test
[R1-trafficpolicy-test] classifier test behavior test
[R1-trafficpolicy-test] quit
[R1] interface GE 0/0/1
[R1-GE0/0/1] traffic-policy test outbound
[R1-GE0/0/1] quit

Which IP addresses of S1 can successfully ping 10.0.23.3? (Select all that apply)

Answer: A,B,C,D

Explanation:
All four addresses can successfully ping 10.0.23.3, so the correct answer is A, B, C, D .
The key point is that the traffic policy is applied outbound on GE0/0/1 of R1, which is the interface facing S1
. When S1 pings 10.0.23.3, the echo request travels from S1 to R1 and then to S2. The return echo reply from
10.0.23.3 comes back to R1 and is then sent outbound on GE0/0/1 toward S1. Therefore, the traffic policy examines the reply packets , not the original ping request packets.
In those reply packets, the source IP address is 10.0.23.3 , and the destination is one of S1's loopback addresses. The ACL rules denying 10.0.1.1 and 10.1.1.1 as source addresses do not match these reply packets, because those addresses appear as destination addresses , not source addresses. In addition, the ACL contains rule permit ip, which permits all remaining IP traffic. As a result, replies to all four S1 addresses are forwarded successfully, so every listed address can ping 10.0.23.3.


NEW QUESTION # 126
......

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