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Huawei H12-811_V2.0 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Data Communication Network Basics: Covers foundational concepts of data communication networks including network types, reference models (OSI
  • TCP-IP), and basic device roles.
Topic 2
  • WLAN Technology Basics: Covers wireless LAN standards, components such as APs and ACs, WLAN architecture, and basic configuration principles.
Topic 3
  • Ethernet Technology Basics: Covers Ethernet standards, switching principles, VLANs, and Layer 2 protocols used in enterprise network environments.
Topic 4
  • Data Center Network Basics: Covers the architecture and key technologies used in modern data center networks including virtualization and high-availability design concepts.
Topic 5
  • Network O&M and Troubleshooting: Covers network operation and maintenance practices, common diagnostic tools, and methodologies for identifying and resolving network faults.
Topic 6
  • IP Technology Basics: Covers IPv4
  • IPv6 addressing, subnetting, routing fundamentals, and common routing protocols such as OSPF, RIP, and static routing.

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Huawei HCIA-Datacom V2.0 Sample Questions (Q48-Q53):

NEW QUESTION # 48
Drag and Drop Question
ACLs can be classified into basic ACLs, advanced ACLs, and Layer 2 ACLs based on the rule type. Drag the ACL rules to the correct positions.

Answer:

Explanation:

Explanation:
Basic ACL → Defines packet filtering rules based on source IPv4 addresses, fragment information, and effective time ranges.
Advanced ACL → Defines packet filtering rules based on source/destination IPv4 addresses, IP protocol types, TCP/UDP port numbers, fragment information, and effective time ranges.
Layer 2 ACL → Defines packet filtering rules based on Ethernet frame headers such as MAC addresses, VLAN IDs, and Layer 2 protocol types.
Basic ACLs operate mainly on source IP-related criteria. Advanced ACLs provide extended filtering using Layer 3 and Layer 4 information such as destination IPs and port numbers. Layer 2 ACLs work at the Ethernet frame level and filter traffic based on MAC addresses, VLAN IDs, and other Layer 2 fields.


NEW QUESTION # 49
R1 has the following configurations:
[R1] nat address-group test 1
[R1-address-group-test] section 1 100.1.23.1 100.1.23.254
[R1-address-group-test] mode pat
[R1-address-group-test] quit
[R1] nat-policy
[R1-policy-nat] rule name test
[R1-policy-nat-rule-test] source-address range 192.168.0.0 192.168.255.255
[R1-policy-nat-rule-test] action source-nat address-group test
[R1-policy-nat-rule-test] quit
[R1-policy-nat] quit
[R1] interface GE 0/0/2
[R1-GE0/0/2] nat enable
[R1-GE0/0/2] quit
Which of the following statements is false ?

Answer: B

Explanation:
Option C is false. In this configuration, the NAT address group test contains the public address range
100.1.23.1 to 100.1.23.254 , and the address group works in PAT mode . Port Address Translation allows multiple different intranet users to share the same public IP address while being distinguished by different transport-layer port numbers. Therefore, intranet users with different private IP addresses do not have to use different post-NAT public IP addresses.
Option A is true because 100.1.23.254 is included in the configured public address pool and can be used for source NAT. Option B is also true because NAT is enabled on GE0/0/2 , so if user traffic does not leave through that interface, the NAT policy may not be applied and public access may fail. Option D is true because the configured source address range includes 192.168.1.100, which falls within 192.168.0.0 to
192.168.255.255. HCIA-Datacom teaches that NAT behavior depends on matching traffic, address pools, PAT or no-PAT mode, and the interface where NAT is enabled. This question mainly tests understanding of source NAT and PAT address-sharing behavior.


NEW QUESTION # 50
A small enterprise's switches do not support LACP. Therefore, the administrator manually binds two links between two switches into an Eth-Trunk. Which of the following statements are false about this scenario? (Choose all that apply.)

Answer: B,D

Explanation:
Manually configured Eth-Trunk (static aggregation) does not support dynamic link management features such as automatic link addition or load-based negotiation. If a link fails, it is simply removed from forwarding but not automatically replaced by another link, and the system does not dynamically add new active links.
Also, static Eth-Trunk operates in load-sharing mode, not active/standby mode, so both links forward traffic simultaneously under normal conditions.


NEW QUESTION # 51
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 # 52
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 paths is used by SW1 to send traffic to SW4?

Answer: B

Explanation:
After STP convergence, only ports in the forwarding state participate in active traffic forwarding, while redundant ports may be placed into the blocking or discarding state to eliminate loops. According to the topology and STP role election shown in the question, the valid forwarding path from SW1 to SW4 is SW1 # SW3 # SW4, so option B is correct.
This means that the direct alternative path or the path through SW2 is not the active spanning-tree forwarding path after election and state transition. STP selects paths based on the root bridge, path cost, bridge ID, and port ID. Once the root bridge and port roles are determined, some links remain active and others are blocked to ensure a loop-free Layer 2 topology. HCIA-Datacom emphasizes that the resulting forwarding topology is a tree, not a mesh, even if the physical topology contains redundant links. Understanding the actual forwarding path after STP convergence is important for troubleshooting connectivity, predicting traffic behavior, and verifying whether bridge priority and path-cost settings have produced the intended design outcome in campus switching networks.


NEW QUESTION # 53
......

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