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Which of the following statements about the test of the mean optical transmit power of an optical interface is incorrect?
Mean Optical Transmit Power Testing :
Testing the mean optical transmit power involves measuring the output power of an optical interface using an optical power meter.
Analysis of Options :
Option A : Correct. Repeating measurements ensures accuracy and verifies compliance with technical specifications.
Option B : Correct. Calibration of the optical power meter is essential for accurate measurements.
Option C : Correct. Clean and proper connections prevent signal loss and ensure reliable measurements.
Option D : Incorrect. The test pigtail should be connected to the Tx (transmit) port of the optical interface board, not the Rx (receive) port.
Why D?
Connecting the test pigtail to the Rx port instead of the Tx port is incorrect and would result in no measurable transmit power.
Thus, the correct answer is D .
HCIA Huawei ACCESS Official Documentation , Chapter: Optical Interface Testing.
Optical Power Measurement Procedures by Huawei.
Which of the following statements about VLANs during data service configuration are correct? (Select All that Apply)
B:Single-tagging requires matching service/user VLAN IDs.
C:VLAN-to-GEM mapping enables service segregation.
D:QinQ uses outer VLAN for aggregation and inner VLAN for user identification.
Which of the following optical modules has the most sufficient optical loss budget?
Optical Module Classes :
Optical modules are classified based on their optical loss budget, which determines the maximum distance they can support over fiber-optic cables.
Class Comparison :
CLASS B : Supports shorter distances with lower optical loss budgets.
CLASS B+ : Provides a higher optical loss budget than CLASS B, supporting longer distances.
CLASS C+ : Offers an even higher optical loss budget, suitable for extended-reach deployments.
CLASS C++ : Provides the highest optical loss budget, enabling the longest reach and greatest flexibility in network design.
Why B?
CLASS C++ has the most sufficient optical loss budget, making it the best choice for scenarios requiring maximum reach and reliability.
Thus, the correct answer is B .
HCIA Huawei ACCESS Official Documentation , Chapter: Optical Module Specifications.
ITU-T G.984.x Standards for GPON .
In a traffic profile, the traffic rate can be configured, but the packet priority cannot be set.
Which of the following statements about static routes is correct?
Static routes are manually configured by network administrators and are not dynamically updated by routing protocols. Let us analyze each option:
Option A :
Correct : Static routes are manually added to the routing table by the administrator. They remain unchanged unless manually modified or removed.
Option B :
Incorrect : Static routes are not automatically recalculated when the network topology changes. If a static route becomes invalid due to a topology change, the administrator must manually update it.
Option C :
Incorrect : Static routes are not learned from other routing protocols. Routes learned from dynamic protocols (e.g., OSPF, RIP) are dynamic routes, not static routes.
Option D :
Incorrect : Static routes are not preconfigured on routers before delivery. They are configured by administrators based on the network design.
Thus, the correct answer is A .
HCIA Huawei ACCESS Official Documentation , Chapter: Static Routing.
Routing Protocols and Static Routes by Huawei.
