300-715 · Question #156
An administrator connects an HP printer to a dot1x enable port, but the printer in not accessible. Which feature must the administrator enable to access the printer?
The correct answer is A. MAC authentication bypass. MAC Authentication Bypass (MAB) is the correct answer. Printers, IP phones, and other 'dumb' devices typically do not have an 802.1X supplicant and cannot participate in EAP-based authentication. MAB allows these devices to authenticate using their MAC address instead of EAP…
Question
An administrator connects an HP printer to a dot1x enable port, but the printer in not accessible. Which feature must the administrator enable to access the printer?
Options
- AMAC authentication bypass
- Bchange of authorization
- CTACACS authentication
- DRADIUS authentication
Explanation
MAC Authentication Bypass (MAB) is the correct answer. Printers, IP phones, and other 'dumb' devices typically do not have an 802.1X supplicant and cannot participate in EAP-based authentication. MAB allows these devices to authenticate using their MAC address instead of EAP credentials. When a device fails 802.1X, MAB falls back to checking the device's MAC address against RADIUS, allowing non-supplicant devices like printers to gain network access without full 802.1X support.