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Exam Code: H12-421-ENU
Exam Name: Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization
Updated: Jul 27, 2026
Q & A: 240 Questions and Answers
H12-421-ENU Free Demo download
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| Section | Weight | Objectives |
|---|---|---|
| Reliability and Safety Design | 10% | - Operational safety standards - Redundancy models (N, N+1, 2N) - Risk management and disaster recovery |
| Data Center Construction and MEP Integration | 15% | - Mechanical, Electrical, Plumbing (MEP) systems - Fire protection and safety systems - Site planning and infrastructure layout |
| Power Supply and Distribution Systems | 25% | - Power distribution architecture - Backup power systems (generators, batteries) - UPS systems and redundancy design |
| Structured Cabling Systems | 10% | - Fiber and copper cabling standards - Labeling and documentation practices - Cable management and routing design |
| Data Center Fundamentals and Architecture | 10% | - Overall architecture design principles - Key infrastructure components overview - Data center classification and tiers |
| Cooling and Environmental Control | 20% | - Precision air conditioning systems - Airflow management and hot/cold aisle containment - Thermal monitoring and efficiency optimization |
| Monitoring, Operation and Maintenance | 15% | - Routine maintenance and fault handling - Capacity planning and optimization - DCIM (Data Center Infrastructure Management) |
1. In the installation scenario where the indoor unit is higher than the outdoor unit, the oil trap must be set.
A) True
B) False
2. When installing NetCol5000-A35kW, how many kg of refrigerant are generally pre-filled?
A) 10
B) 8
C) 12
D) 5
3. The NetCol5000C device is powered on and the reason why the fan does not turn may be ().
A) The filter is dirty
B) Condensate drainage is not smooth
C) Strong drainage system failure
D) The machine power module is faulty or abnormal.
4. Through the ECC800Web interface, what can users do? (Multiple choice)
A) Export historical data
B) Software upgrade
C) Query version information
D) Real-time monitoring of device status
5. When the UPS5000-E (), boot will automatically run the Quick Setup Wizard. (Multiple Choice)
A) The device is turned on again after the factory settings are restored.
B) Start after recovery failure
C) First boot
D) Turn it off and then on.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: A,B,C,D | Question # 5 Answer: A,C |
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