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Huawei H12-421 問題練習

Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization 試験

最新更新時間: 2019/05/15,合計40問。

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Question No : 1
The principle of the () humidifier is that the high-intensity infrared lamp causes the water surface to release water vapor and diffuse into the air stream that needs to be humidified.

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Question No : 2
The reason for using the EPO status interface in the parallel step of the UPS5000-E is ().

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Question No : 3
The assembly unit that can realize RS485/CAN to FE interface conversion is ().

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Question No : 4
The functions provided by Huawei's monitoring system NetEco are: (multiple choice)

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Question No : 5
Among the components of the UPS5000-E, () can be hot plug. (Multiple choice)

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Question No : 6
When the status of UPS2000G battery is "NA", it may be ().

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Question No : 7
When installing the power line on the UPS5000-E, if there are different sources on the main-lines and bypass, you need to remove the copper bars connected to the bypass and main lines first, and then connect the main circuit and bypass input respectively.

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Question No : 8
The main reason for the energy-saving effect of the closed cold/hot passage is (). (Multiple choice)

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Question No : 9
After the NetCol5000-A25kW half-cabinet air-conditioning refrigerant pipeline is installed, do the nitrogen charge pressure maintaining, the nitrogen pressure is () Mpa.

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Question No : 10
If the customer load cannot be power-off, what should be taken care when closing the maintenance bypass switch? (Multiple choice)

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Question No : 11
When installing the Huawei air-cooled air conditioner, the refrigerant pipeline positive pressure is required to be () hours.

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Question No : 12
By setting the mailbox parameters, the NetEco system will send an email to notify the user according to the set rules.

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Question No : 13
() indicates the amount of electricity that can be discharged when the fully charged battery is discharged to the specified termination voltage according to certain discharge conditions. The unit is expressed in Ah (Ah) or Watt (Wh).

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Question No : 14
If the ECC800 is configured with a SIM card, the SIM card should be installed in ().

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Question No : 15
If the status of the access which collected by the network management is always open, it can be checked by (). (Multiple choice)

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