Huawei Updated H12-891_V1.0 Exam Questions and Answers by abu

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Comprehensive and Detailed In-Depth Explanation:

1. Portal Authentication:

Scenario:Guests who move frequently and use different types of terminals.

Portal authentication (also known as Web authentication) is commonly used in environments like Wi-Fi hotspots, hotels, and public areas.

Users are redirected to a login page where they enter credentials.

This method is flexible for guests and visitors who may frequently change locations or devices.

Use Case:Wi-Fi access for guests in a corporate environment.

2. MAC Address Authentication:

Scenario:Dumb terminals such as printers and fax machines.

MAC address authentication is useful for devices that do not support interactive authentication methods (like printers or IP phones).

It authenticates devices based on theirMAC addresswithout user intervention.

This method is suitable for static, non-user devices that are typically part of the local network.

Use Case:Ensuring that only authorized printers or IP phones connect to the network.

3. 802.1X Authentication:

Scenario:Office users in scenarios demanding high security.

802.1X is aport-based network access control protocolthat authenticates users before allowing network access.

Typically used in wired or wireless LAN environments where high security is required.

It usesEAP (Extensible Authentication Protocol)methods and integrates with RADIUS servers.

Use Case:Corporate LAN environments with stringent security policies.

SRv6 Policies can be:

Statically configured via CLI on routers.

Dynamically generated and delivered from a controller such as Huawei iMaster NCE for centralized path computation.

This dual approach allows flexibility in deployments.

Exact Extract – Huawei SRv6 Deployment Guide:

“SRv6 Policies can be locally configured or dynamically delivered via PCEP from the controller, enabling both static and SDN-based implementations.”

The provided Python code uses the requests.post() function to make an HTTP POST request to retrieve a token from iMaster NCE. The body is structured using the json={} parameter, which serializes the dictionary into JSON format. The proper content-type and accept headers are included.

Let's analyze each option:

✅ Option A is correct: The print(r.json()) is a valid method to display JSON response from the server.

✅ Option B is correct: The token URL is constructed correctly: https://139.9.213.72:18002/controller/v2/tokens.

✅ Option C is correct: The request body is clearly in JSON format, specified by the json={...} argument.

❌ Option D is incorrect: The HTTP method used is POST, not GET. The statement is false, making it the correct answer to select.

Huawei Official Documentation Reference:

“To obtain a token, the client sends a POST request to /controller/v2/tokens, including credentials in the request body in JSON format.”

(Source: Huawei iMaster NCE RESTful API Reference Guide – Authentication Section)

Huawei’sSD-WAN solutionoffers a full suite of application optimization technologies, including:

Application identification: Uses DPI and traffic signatures to identify applications.

Intelligent traffic steering: Dynamically routes traffic based on application type and real-time link performance.

WAN optimization: Reduces latency, deduplicates traffic, and optimizes throughput for key apps.

QoS: Prioritizes critical applications and ensures bandwidth guarantees.

All listed options are part of the Huawei SD-WAN solutionfor optimizing user experience and application performance.

Correct answers: A, B, C, D