Huawei Updated H12-811_V1.0 Exam Questions and Answers by cezar

IP Address Uniqueness on VLANIF Interfaces:Each VLANIF interface represents a different logical interface, often tied to distinct subnets. IP addresses for VLANIF interfaces must be unique on the same switch to prevent address conflicts and routing issues​​.

Correct Answer:TRUE. The IP addresses of VLANIF interfaces on the same switch must be different.

1. Understanding the ACL Rule

The rule:

rule 5 deny source 100.0.12.0 0.0.0.255

Blocks traffic originating from 100.0.12.0/24 (Host B’s network).

This means any packet sent from Host B to Host A will be blocked.

2. Applying the ACL to the Correct Interfaces

Option A: Applied inbound on GE0/0/1 → Blocks packets from Host B before reaching Host A. ✅

Option B: Applied inbound on GE0/0/2 → Blocks packets from Host A before reaching Host B. ✅

3. Why Other Options Are Incorrect

Option C (GigabitEthernet0/0/3):

Interface GE0/0/3 is not connected to Host A or Host B, so applying ACL here is meaningless.

Option D (Outbound on GE0/0/1):

Outbound filtering is less efficient than inbound filtering because it blocks traffic after routing.

4. Correct Approach to Prevent Communication

To completely block communication between Host A and Host B, we must:✅ Block inbound traffic on GE0/0/1 (Host A’s interface)✅ Block inbound traffic on GE0/0/2 (Host B’s interface)

Conclusion:

The correct choices are A and B because they block inbound traffic at the correct interfaces.

Options C and D are incorrect because they apply ACL rules to the wrong interfaces or use inefficient filtering.

The tracert (Trace Route) command is a network diagnostic tool used to trace the path that packets take from the source device to the destination.

It works by sending ICMP Echo Requests (or UDP packets) with increasing TTL (Time-To-Live) values and recording responses from each hop along the way.

This helps network administrators identify routing issues, network delays, and connectivity problems in the forwarding path.

The command is commonly used in Huawei VRP to diagnose network latency or packet loss between different nodes.

Thus, the correct answer is A (TRUE).

IPv6 Anycast Address Characteristics:

Option A: True. Packets are delivered to the nearest interface based on routing distance.

Option B: False. Anycast addresses are not designed for load balancing.

Option C: True. Anycast addresses share the same address space as unicast.

Option D: True. Anycast provides redundancy by allowing multiple endpoints to share the same address​​.