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Huawei H12-421-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Center Fundamentals and Architecture | 10% | - Key infrastructure components overview - Data center classification and tiers - Overall architecture design principles |
| Topic 2: Cooling and Environmental Control | 20% | - Thermal monitoring and efficiency optimization - Precision air conditioning systems - Airflow management and hot/cold aisle containment |
| Topic 3: Structured Cabling Systems | 10% | - Cable management and routing design - Fiber and copper cabling standards - Labeling and documentation practices |
| Topic 4: Monitoring, Operation and Maintenance | 15% | - Capacity planning and optimization - DCIM (Data Center Infrastructure Management) - Routine maintenance and fault handling |
| Topic 5: Data Center Construction and MEP Integration | 15% | - Mechanical, Electrical, Plumbing (MEP) systems - Fire protection and safety systems - Site planning and infrastructure layout |
| Topic 6: Reliability and Safety Design | 10% | - Risk management and disaster recovery - Operational safety standards - Redundancy models (N, N+1, 2N) |
| Topic 7: Power Supply and Distribution Systems | 25% | - UPS systems and redundancy design - Backup power systems (generators, batteries) - Power distribution architecture |
Huawei Certified Network Professional-Data Center Facility-Build Facility Deployment Optimization Sample Questions:
Question #1
The function of Counter irrigation protection card is when energy reversal occurs in the main road or bypass. The counter irrigation protection card sends a drive alarm signal, and the drive trip switch (customer self-configure) is disconnected, which acts as counter irrigation protection.
A. False
B. True
Question #2
Before the UPS5000 is powered on, it is necessary to check that the UPS input switch, bypass switch, output switch, maintenance bypass switch, battery open) have all been placed in the "OFF" state.
A. False
B. True
Question #3
When the NetCol5000-A air conditioner was commissioned, Which statement about the possible cause of the "exhaust high pressure alarm" was wrong?
A. Too little refrigerant charge
B. Outdoor unit fan speed is too low
C. Outdoor fan cannot start
D. Excessive refrigerant charge
Question #4
The NetCol 8000-A compressor has a large amount of foam in the oil sight glass for a long time, indicating that the superheat is too large.
A. False
B. True
Question #5
When the maintenance engineer arrives at the customer site, the working environment around the site should be recorded. The main collection items are (). (Multiple choice)
A. Equipment installation distance
B. Ambient temperature
C. Ventilation
D. If there is a bad environment around it (such as dust or moisture)
Solutions:
| Question #1 Correct Answer: B | Question #2 Correct Answer: B | Question #3 Correct Answer: A | Question #4 Correct Answer: A | Question #5 Correct Answer: A,B,C,D |
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