Free Practice Questions for Huawei H19-260_V2.0 Exam

Answer : A, B, C

The exact extract asks how the traditional solution ensures PV DC-side security. The correct answer is A, B, C. A fuse is a traditional protection component used to interrupt excessive current on the DC side. A DC combiner box is also a traditional PV-side component that combines strings and normally contains fuses, surge protection, and DC isolation/protection elements. A manual disconnect switch is another traditional method for isolating PV strings or DC circuits during maintenance or fault handling. These three options are directly associated with DC-side protection and isolation. Option D, AC switch, is not correct because it belongs to the AC side of the inverter output, not the PV DC side. The question is specifically about the security of the PV DC side, so AC-side switching cannot be counted as a DC-side protection method. Huawei's newer C&I safety materials contrast these conventional protections with intelligent DC-side disconnection and rapid active protection. Reference: Huawei C&I Smart PV active-safety material; Huawei AFCI technical material.

Answer : A

The exact extract states that microgrids can be regarded as UPSs because they ensure uninterrupted power supply for loads. In the training context, this is treated as True. A smart microgrid is not literally the same product as a conventional UPS, but the comparison is valid at the solution-function level: a microgrid coordinates PV, ESS, grid input, PCS/inverters, and sometimes diesel generation to maintain power continuity for important loads. Huawei's backup and microgrid-style solutions emphasize seamless or ultra-fast switching, backup continuity, and enduring power supply when the grid is unavailable. This is why the exam statement uses ''regarded as UPSs'' rather than saying ''microgrids are UPS equipment.'' The intended meaning is that a properly designed microgrid can provide UPS-like power continuity for the protected load. Therefore, the statement should be marked True in the certification context. Reference: Huawei SmartGuard / backup power continuity materials and Huawei PV+ESS solution materials.

Answer : A

The exact extract states that Huawei Smart I-V Diagnosis supports string-level fault locating. This is true. Huawei Smart I-V Curve Diagnosis is designed to perform online I-V curve analysis across PV strings and identify strings with low performance, abnormal output, or malfunction. This function improves O&M efficiency because maintenance teams do not need to manually inspect every string first. Instead, the system scans string-level electrical characteristics, compares I-V curve behavior, and flags abnormal strings for targeted inspection. Huawei's Utility Smart PV Solution page describes Smart I-V Curve Diagnosis as helping find and identify strings with low performance or malfunction, enabling proactive maintenance, higher O&M efficiency, and lower operation cost. Huawei's Utility Smart PV & ESS Solution material also states that Smart I-V Curve Diagnosis carries out online I-V curve analysis on entire strings with advanced diagnosis algorithms. Therefore, the statement is correct: Huawei Smart I-V Diagnosis supports string-level fault locating. Reference: Huawei Utility Smart PV Solution and Utility Smart PV & ESS Solution brochure.

Answer : A, B, C, D

The exact extract asks for the value features of the optimizer. All four options are correct because Huawei optimizer or Smart Module Controller value is built around safety, yield improvement, flexible rooftop use, and module-level visibility. Safety voltage fast shutdown is a core feature because Huawei describes rapid shutdown as reducing rooftop high voltage to a safe state during emergencies or maintenance. Yield improvement in shadowed areas is also correct because module-level optimization allows each PV module to operate independently, reducing mismatch from shading, dirt, aging, or different orientations. The same principle supports multi-directional rooftop PV strings, where modules may face different azimuths or tilt angles. Module-level monitoring is also a direct value feature because it helps identify module faults and improves O&M precision. Huawei's optimizer documentation highlights module-level optimization, rapid shutdown, flexible design, and Smart O&M as major value points. Reference: Huawei Smart Module Controller / MERC-1100/1300W-P documents.

Answer : D

The exact extract describes a safety-management phase where management makes safety commitments, safety personnel act as a deterrent, rules and procedures are established, and safety supervision plus accident control are emphasized. This clearly matches Supervision and management. In this phase, safety is no longer handled only by instinct or informal personal judgment. Instead, the organization begins to rely on formal rules, management commitments, safety personnel, supervision, and accident-control mechanisms. It is still not the highest maturity level, because employees may not yet be fully self-driven or team-driven in safety behavior. ''By instinct'' would mean safety behavior depends mainly on individual reactions and basic survival awareness. ''Self-management'' means employees voluntarily manage safety without heavy supervision. ''Team management'' means safety is embedded in collective team behavior. The statement specifically emphasizes supervision, rules, deterrence, and accident control, so the correct classification is supervision and management. Reference: Huawei HCSA-Sales-Smart PV V2.0 Safety Management training extract.