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Huawei H12-421-ENU Exam Syllabus Topics:

Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization Sample Questions:

1. If the customer load cannot be power-off, what should be taken care when closing the maintenance bypass switch? (Multiple choice)

A) Turn off the inverter, let the UPS be in bypass power supply mode and then close the maintenance bypass switch.
B) The maintenance bypass switch can also be closed in the inverter power supply mode.
C) First perform EPO then close maintenance switch
D) Close the maintenance switch first and then execute the EPO.

2. The straight pipe interval fixedly supported by NetCol5000-C piping is ().

A) 3200mm
B) 2500mm
C) 2800mm
D) 3000mm

3. What does NetCol5000-A maintain the electrode humidifier without removing the humidifier?(Multiple choice)

A) Confirm that there is no abnormality in water supply and drainage of the humidifier
B) Check if the humidifier solenoid valve controls normally
C) Check that the humidifying electrode is fully inserted into the humidifying barrel without exposure to the outer part.
D) Check the manual drain of the humidifying bucket

4. The cycle life of the battery is direct proportional to the depth of discharge.

A) True
B) False

5. During the use of the battery pack, the appearance is normal, but there is no current during charging, and the voltage drop is zero at the moment of discharge, and it cannot be discharged. What could be happened in the following?

A) Sulfation
B) Battery leakage
C) backward battery
D) Breaking the battery pack

Solutions: