Switches in sealed enclosures are at risk of overheating because airflow is restricted. The temperature factor is critical since heat buildup can damage components, shorten device lifespan, and cause outages. Proper cooling or ventilation must be ensured.
A. Fire suppression is important for data centers but not the primary concern in a sealed box.
B. Power budget applies to PoE allocations, not environmental safety.
D. Humidity matters, but overheating is far more immediate in sealed environments.
References (CompTIA Network+ N10-009):
Domain: Network Infrastructure — Environmental considerations, switch installation, temperature control.
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