350-701 Question #646: Real Exam Question with Answer & Explanation

The correct answer is D. Add MAB into the switch to allow redirection to a Layer 3 device for authentication.. Configuring the IEEE 802.1X Flexible Authentication feature to support Layer 3 authentication mechanisms involves adding MAC Authentication Bypass (MAB) into the switch configuration. This allows devices that do not support 802.1X to be authenticated using their MAC address. Once

Submitted by yuki_2020· Mar 30, 2026

Question

Which action configures the IEEE 802.1X Flexible Authentication feature lo support Layer 3 authentication mechanisms?

Options

AIdentity the devices using this feature and create a policy that allows them to pass Layer 2
BConfigure WebAuth so the hosts are redirected to a web page for authentication.
CModify the Dot1x configuration on the VPN server lo send Layer 3 authentications to an external
DAdd MAB into the switch to allow redirection to a Layer 3 device for authentication.

Explanation

Configuring the IEEE 802.1X Flexible Authentication feature to support Layer 3 authentication mechanisms involves adding MAC Authentication Bypass (MAB) into the switch configuration. This allows devices that do not support 802.1X to be authenticated using their MAC address. Once MAB identifies the device, it can then be redirected to a Layer 3 device for further authentication, thus providing a mechanism to support devices requiring Layer 3 authentication

Topics

#802.1X#Flexible Authentication#MAB#Layer 3 authentication

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