Power over Ethernet (PoE) is part of the Pro tier — advanced networking topics including BGP routing, Zero Trust, DDoS attacks, QUIC, TLS certificate chains, and more.
This scenario covers
How PoE (IEEE 802.3af/at/bt) delivers DC power over Ethernet cables to IP cameras, access points, and VoIP phones — including power negotiation, budget management, and the difference between PoE standards.
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