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| Section | Objectives |
|---|---|
| Campus Network Solution Architecture and Design | - Enterprise Campus Network Architecture
|
| Huawei Campus Network Products and Solutions | - Campus Network Product Portfolio
|
| Industry Scenario Solution Design | - Industry-Oriented Campus Solutions
|
| Pre-sales Methodology and Solution Presentation | - Pre-sales Skills
|
| Campus WLAN Planning and Design | - WLAN Technologies
|
| Campus SD-WAN Planning and Design | - SD-WAN Solutions
|
| Campus Network Security Design | - Security Planning
|
| CloudCampus and Intelligent Campus Solutions | - CloudCampus Architecture
|
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NEW QUESTION # 23
Which of the following statements is false about Layer 3 roaming?
Answer: B
Explanation:
Option B is false because a station retains its original IP address during Layer 3 roaming. Preserving the IP address is essential for maintaining active application sessions when the station moves between APs associated with different service VLANs, Layer 2 domains, and gateways. Huawei's training diagram shows the same station IP address before and after roaming, while the service VLAN changes.
When the STA initially accesses the WLAN, a Home AP or HAP is selected for it. After the STA roams to a Foreign AP, the new AP obtains the station information and establishes the required forwarding relationship with the HAP. In direct-forwarding implementations, the STA's traffic is encapsulated and forwarded to the HAP, which preserves access through the original network and gateway.
Therefore, A and C accurately describe HAP-based Layer 3 roaming. Option D is also correct: the APs use the same SSID and authentication mode but different service VLANs. The station's IP address does not change, so B is the false statement.
NEW QUESTION # 24
If multiple Internet links are available, these links cannot be prioritized and can only be load-balanced.
Answer: B
Explanation:
The statement is false because Huawei SD-WAN supports both priority-based link selection and load balancing. Multiple Internet or WAN links do not have to be treated equally. An administrator can define a preferred or primary link and designate another link as secondary or backup according to application requirements, link quality, cost, bandwidth, or operational policy.
For delay- and packet-loss-sensitive services such as voice and video, a higher-quality link can be configured as the primary path and another link as the backup. If the primary link no longer satisfies the configured SLA thresholds, traffic can be dynamically switched to a better path. Huawei's material explicitly describes primary and secondary link selection based on SLA and also presents load-balancing-based steering as a separate option.
Load balancing is useful when an enterprise wants to utilize the bandwidth of multiple links concurrently.
Priority-based active/standby forwarding is preferable when one provider offers better quality or when one circuit should be reserved for critical services. Intelligent traffic steering can additionally consider application priority and current bandwidth utilization. Therefore, multiple links can be prioritized, load-balanced, or used in a policy-controlled combination, making option B correct.
NEW QUESTION # 25
Which of the following is not part of an IFIT measurement model?
Answer: B
Explanation:
The Network Management System is not an element of the IFIT measurement model. An IFIT measurement definition identifies the traffic to be measured, the locations where measurement actions occur, and the direction in which the flow is evaluated. The measurement flow specifies the target packets, usually through flow-identification fields. Measurement points define where packets are marked, counted, timestamped, or reported, such as ingress, transit, and egress nodes. Measurement direction distinguishes forward and reverse monitoring so that packet loss, delay, and path behavior can be analyzed correctly for each direction.
An NMS or controller remains operationally important because it creates measurement tasks, distributes configurations, receives telemetry data, correlates the results, and presents fault-location information.
However, it is the management and analysis system surrounding the measurement model, not one of the model's constituent measurement parameters.
Huawei positions IFIT as a high-precision telemetry mechanism used to delimit and locate application-quality faults. The training material highlights IFIT's capability to locate faults rapidly and detect packet loss with extremely high reliability. Therefore, the component that is not part of the measurement model is the NMS.
NEW QUESTION # 26
Which of the following parameters is not mandatory for GRE configuration?
Answer: D
Explanation:
Enabling the GRE checksum is optional. A functional point-to-point GRE tunnel requires a tunnel interface, GRE as the tunnel protocol, and reachable source and destination tunnel endpoints. The source identifies the local interface or IP address used to construct the delivery header, while the destination identifies the remote GRE endpoint. Without these endpoint parameters, the device cannot correctly encapsulate and deliver packets to the peer.
The checksum field is controlled by the Checksum Present bit in the GRE header. When checksum processing is enabled, the sender includes a checksum covering the GRE header and payload, and the receiver verifies it.
This can provide additional corruption detection, but it increases processing and is not required for basic GRE operation. RFC 2784 explicitly labels the checksum field as optional and states that it is present only when the Checksum Present bit is set.
Huawei SD-WAN uses GRE or GRE over IPsec to establish data channels between edge devices. The essential tunnel and transport-network information is distributed through the control system, while optional GRE functions such as checksum validation may be enabled according to operational requirements.
NEW QUESTION # 27
Which of the following statements are true about selecting network access authentication points?
Answer: A,B,D
Explanation:
Authentication points should generally be placed on access devices close to the terminals. For wireless users, the AP or WLAN access device is the natural admission point because it directly controls the station's wireless association and service access. For wired users, the access switch directly connects the endpoint and can enforce 802.1X, MAC-address authentication, VLAN authorization, ACLs, and security-group policies.
Huawei recommends access devices as authentication points for employees and specifically recommends access switches as authentication points for wired dumb terminals using MAC-address authentication.
Deploying enforcement close to endpoints prevents unauthenticated or unauthorized traffic from traversing deeper into the campus network. It also improves fault isolation, policy granularity, and scalability because admission processing is distributed across access devices.
Option A is incorrect. A centralized authentication point can simplify configuration and policy management, but it does not inherently provide higher performance. It can create concentrated processing pressure, enlarge the Layer 2 scope, and allow unauthenticated traffic to travel farther before being evaluated. Therefore, the recommended principles are represented by B, C, and D.
NEW QUESTION # 28
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