New 2021 Guaranteed Success with PracticeVCE H12-421-ENU Dumps Huawei PDF Questions
Exceptional Practice To Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization Pass the First Time
NEW QUESTION 141
When the NetCol5000-A removes the air conditioning humidifier, the steps to maintain the electrode humidifier include (). (Multiple choice)
- A. Replace the hardened and brittle hose thoroughly flush the drain
- B. Remove and clean the water supply valve
- C. Disconnect the water supply valve and drain valve wiring
- D. Remove the drain tank and drain valve component
Answer: A,B,C,D
NEW QUESTION 142
Which of the following factors affect battery life? (Multiple Choice)
- A. Depth of discharge
- B. Number of cycles
- C. Temperature
- D. Rated capacity
Answer: A,B,C
NEW QUESTION 143
The dry contact signal of the UPS5000-E does not support the remote emergency stop function.
- A. True
- B. False
Answer: B
NEW QUESTION 144
Check that the load switch is in the "OFF" position before powering up the URS5000.
- A. True
- B. False
Answer: A
NEW QUESTION 145
The NetCol5000-C air conditioner does not support the power module plug and play maintenance.
- A. True
- B. False
Answer: B
NEW QUESTION 146
The video can be viewed on NetEco only after the video camera is configured on the IVS.
- A. True
- B. False
Answer: A
NEW QUESTION 147
The NetCol5000-C requires manual adjustment of the water valve to a minimum when it is filled with water.
- A. True
- B. False
Answer: B
NEW QUESTION 148
To balance the capacity loss caused by the self-discharge of the battery during the use of the battery, it is necessary to charge the battery continuously and for a long time at constant voltage, which is called ().
- A. self-discharge
- B. charging
- C. charging test
- D. balanced charging
Answer: B
NEW QUESTION 149
When the battery is discharged, the discharge voltage of a faulty battery drops rapidly, resulting in insufficient backup time for the entire battery. What should be done?
- A. Forced equalization, replacement of faulty battery
- B. scrapping the entire battery
- C. No need to deal with
- D. Performing a discharge
Answer: A
NEW QUESTION 150
The UPS2000-G-(6-20kVA) did not report a fault but the load was cut off due to a poor connection of the output cable.
- A. True
- B. False
Answer: A
NEW QUESTION 151
ECC800 is the core component of the micro-module local management, and its south-facing components can be extended through the PoE bus.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 152
NetEco mobile app supports WiFi with a maximum effective distance of ( ) meters.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 153
The 2.4G antenna on the ECC800 should be installed in ( ).
- A. RS485 port
- B. DO output dry contact
- C. RF_ZA line interface
- D. 3G/4G antenna interface
Answer: C
NEW QUESTION 154
The ECC800 does not support wireless communication.
- A. True
- B. False
Answer: B
NEW QUESTION 155
NetCol5000-A air conditioner compressor exhaust temperature is too high, what are the reasons? (Multiple Choice)
- A. The outdoor unit is not installed correctly.
- B. condenser filth blockage leads to poor heat dissipation
- C. Too little refrigerant charge
- D. The refrigerant circuit or device is clogged
Answer: A,B,C,D
NEW QUESTION 156
The UPS5000 option temperature and humidity sensor does not support cascading.
- A. True
- B. False
Answer: B
NEW QUESTION 157
When the internal short circuit of the battery occurs, the faulty battery charging voltage (), the open circuit voltage is low (generally less than 1V/cell).
- A. Low
- B. No change
- C. all possible
- D. High
Answer: A
NEW QUESTION 158
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