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3.4.2. Power and Environmental Considerations
Power Components:
| Component | Function |
|---|---|
| UPS (Uninterruptible Power Supply) | Battery backup for short outages; clean shutdown time |
| PDU (Power Distribution Unit) | Distributes power to rack equipment |
| Generator | Extended backup during prolonged outages |
⚠️ Exam Pattern: For preventing brief disruptions (< 15 minutes), UPS is the answer. For extended outages, generators are needed. UPS bridges the gap while generators start (10-30 seconds).
Environmental:
- Temperature: Equipment operating range typically 64-75°F (18-24°C)
- Humidity: Too high causes condensation; too low causes static discharge
- Fire suppression: Clean agent systems (FM-200, Novec, Inergen) don't damage equipment like water sprinklers would
Written byAlvin Varughese
Founder•15 professional certifications