Which statement is true about the PoE negotiation process?
- With 802.3af and 802.3at, the switch tries to detect the powered device by supplying a small voltage across the Ethernet cable.
- Cisco Inline Power has the same method of negotiating power as both of the IEEE standards.
- The PoE switch keeps the power on a disabled port up, just in case a device that needs PoE will be connected.
- IEEE 802.3af power classes are numbered 1-5.
More Questions: CCNP SWITCH Chapter 8 Exam Answers