H20-681-ENU 試験問題を無料オンラインアクセス

The hardware equipment included in the fiber ring network transmission system has () (Multiple choice)

• A.Fiber optic terminal box
• B.Fiber switch
• C.Optical module
• D.Forward isolation device

Which of the following about the description of Huawei SmartLogger accessing third-party devices is correct? (Multiple Choice)

• A.Access to third-party devices that support the standard Modbus-RTU protocol
• B.Custom devices support automatic search, no need to manually add
• C.Custom devices do not support automatic search and need to be added manually
• D.Because the agreement information points of each manufacturer are inconsistent, you need to configure the communication point table file.

Inverter construction eight ban four recommended principles, which of the following are four recommended?

• A.The above three items
• B.It is recommended to make a touch up treatment on the scratched casing.
• C.It is recommended to test the input voltage of each string when installing the PV cable into the inverter.
• D.It is recommended to close the doors and windows of containers, brick buildings, etc. during construction to prevent ash from entering.

Huawei SmartLogger recommends that the number of inverters connected to each RS485 port is not greater than ().

• A.10
• B.20
• C.30
• D.15

When there is a conflict with the customer on the issue or viewpoint in the process of project supervision, the service engineer can fully express the problem or viewpoint according to personal experience to convince the customer to accept.

• A.True
• B.False