What is an advantage of PoE?

• A. all of these
• B. lower operating costs
• C. immediate return on investment
• D. its cabling is robust

Answer: (B)

Power over Ethernet lowers operating costs by delivering power and data over the same network cable. This eliminates the need for separate electrical outlets and individual power wiring at each device, which saves installation time, reduces material and labor costs, and simplifies future changes or upgrades. Centralized power management through PoE also makes maintenance easier and can improve uptime, since devices can be powered or rebooted remotely from the network switch. The idea that the cabling itself becomes more robust isn’t a direct benefit of PoE, and immediate return on investment isn’t guaranteed in every case.