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Huawei H12-421-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Monitoring, Operation and Maintenance | 15% | - DCIM (Data Center Infrastructure Management) - Capacity planning and optimization - Routine maintenance and fault handling |
| Data Center Fundamentals and Architecture | 10% | - Overall architecture design principles - Key infrastructure components overview - Data center classification and tiers |
| Structured Cabling Systems | 10% | - Fiber and copper cabling standards - Cable management and routing design - Labeling and documentation practices |
| Cooling and Environmental Control | 20% | - Thermal monitoring and efficiency optimization - Airflow management and hot/cold aisle containment - Precision air conditioning systems |
| Data Center Construction and MEP Integration | 15% | - Site planning and infrastructure layout - Fire protection and safety systems - Mechanical, Electrical, Plumbing (MEP) systems |
| Power Supply and Distribution Systems | 25% | - Power distribution architecture - Backup power systems (generators, batteries) - UPS systems and redundancy design |
| Reliability and Safety Design | 10% | - Operational safety standards - Redundancy models (N, N+1, 2N) - Risk management and disaster recovery |
Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization Sample Questions:
What can be detected by the optional battery inspection instrument? (Multiple choice)
- A. Voltage
- B. Battery case temperature
- C. Internal resistance
- D. Frequency
When the UPS5000-E is installed in parallel, it is not necessary to connect the UPS parallel lines of the parallel system into a loop.
- A. True
- B. False
The NetEco system can customize the alarm sound for different levels of alarms.
- A. TRUE
- B. FALSE
If the customer load cannot be power-off, what should be taken care when closing the maintenance bypass switch? (Multiple choice)
- A. The maintenance bypass switch can also be closed in the inverter power supply mode.
- B. First perform EPO then close maintenance switch
- C. Close the maintenance switch first and then execute the EPO.
- D. Turn off the inverter, let the UPS be in bypass power supply mode and then close the maintenance bypass switch.
Which of the following are the characteristics of Huawei NetCol5000-A row-level precision air conditioner cooling capacity adjustment?
- A. When the load is lower than 20%, the electric heating heat compensation is turned on, and the compressor is continuously operated without stopping.
- B. When the load is lower than 30%, the compressor starts and stops frequently, and the valve frequently actions and is easily stuck.
- C. Invariable frequency compressor, can't adjust cooling capacity infinitely.
- D. DC inverter compressor, which can 20%~100% infinitely adjust cooling capacity.
