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Huawei H12-421-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| 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 |
| Reliability and Safety Design | 10% | - Operational safety standards - Redundancy models (N, N+1, 2N) - Risk management and disaster recovery |
| 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 |
| Monitoring, Operation and Maintenance | 15% | - DCIM (Data Center Infrastructure Management) - Capacity planning and optimization - Routine maintenance and fault handling |
| Power Supply and Distribution Systems | 25% | - Power distribution architecture - Backup power systems (generators, batteries) - UPS systems and redundancy design |
Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization Sample Questions:
1. What can be detected by the optional battery inspection instrument? (Multiple choice)
A) Voltage
B) Battery case temperature
C) Internal resistance
D) Frequency
2. 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
3. The NetEco system can customize the alarm sound for different levels of alarms.
A) TRUE
B) FALSE
4. 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.
5. 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.
Solutions:
| Question # 1 Answer: A,B,C | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: C,D | Question # 5 Answer: A,D |
