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Huawei H12-421-ENU Exam Syllabus Topics:

Section	Weight	Objectives
Data Center Fundamentals and Architecture	10%	- Data center classification and tiers - Overall architecture design principles - Key infrastructure components overview
Monitoring, Operation and Maintenance	15%	- Capacity planning and optimization - DCIM (Data Center Infrastructure Management) - Routine maintenance and fault handling
Data Center Construction and MEP Integration	15%	- Site planning and infrastructure layout - Mechanical, Electrical, Plumbing (MEP) systems - Fire protection and safety systems
Reliability and Safety Design	10%	- Operational safety standards - Redundancy models (N, N+1, 2N) - Risk management and disaster recovery
Structured Cabling Systems	10%	- Cable management and routing design - Labeling and documentation practices - Fiber and copper cabling standards
Cooling and Environmental Control	20%	- Thermal monitoring and efficiency optimization - Airflow management and hot/cold aisle containment - Precision air conditioning systems
Power Supply and Distribution Systems	25%	- Backup power systems (generators, batteries) - Power distribution architecture - UPS systems and redundancy design

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

Question #1

In the process of using the battery, in order to reduce the deterioration of the voltage imbalance between the batteries, it is necessary to increase the charging voltage of the battery pack, and to activate and charge the battery to extend the battery life, which is called ().