In a WLAN network, what are the following advantages of using a PoE switch for power supply compared to using a PoE power adapter for power supply? (Multiple choice)

Question

Options

• AAPOE switch equipment costs less
• BNo external power supply, more beautiful when deployed
• CReuse network cable power supply to reduce construction costs
• DPoE port can be remotely managed

• A
  21% (7)
• B
  79% (27)

Explanation

Using a PoE switch eliminates the need for a separate power adapter at each access point location - the switch delivers both data and power over a single Ethernet cable, resulting in cleaner installations with no bulky external adapters cluttering the deployment site (B). Since power travels over the existing network cable rather than requiring separate electrical wiring or power outlets near each AP, construction and cabling costs are reduced (C). Additionally, PoE switch ports support remote management capabilities such as remotely power-cycling a hung AP or monitoring port power consumption via SNMP - something a standalone PoE adapter cannot do (D).

Why A is wrong: PoE switches are generally more expensive than individual PoE adapters per unit; the cost savings come from reduced construction/cabling, not equipment purchase price. The "A" option is actually the reverse of reality.

Memory tip: Think of a PoE switch as a "smart power strip with ethernet" - it's neater (B), shares existing wires (C), and since it's a managed network device, you can control it remotely (D). The only thing it doesn't do is save you money on the hardware itself.

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