CWNA: Certified Wireless Network Administrator v107 — Question 22

What statement about 802.3, Clause 33 Power over Ethernet is true?

Answer options

• A. Only midspan PSEs are supported.
• B. The lowest voltage drop is achieved when using CAT6 instead of Cat5 or CAT5e.
• C. Only endpoint PSEs are supported.
• D. When using CAT5 cabling, you increase the maximum draw available to the PD over that available with CAT6.

Correct answer: D

Explanation

The correct answer is D because using CAT5 cabling allows for a higher maximum power draw to the powered device (PD) compared to CAT6. Options A and C are incorrect as both midspan and endpoint PSEs are supported in 802.3, Clause 33. Option B is also wrong because CAT6 does not achieve a lower voltage drop compared to CAT5; in fact, CAT5 can support higher power levels in certain configurations.