When a visitor accesses the corporate network through Portal authentication, in order to ensure a good visitor experience, the visitor is required to open the wireless network range for a short…

Question

Options

• AMAC bypass authentication
• BMAC authentication
• CMAC priority Portal authentication
• D802.1X authentication

• A
  7% (2)
• C
  82% (23)
• D
  11% (3)

Explanation

MAC Priority Portal authentication is correct because it combines Portal (web-based) login for first-time access with MAC address caching, so when a visitor reconnects within the configured time window, the system recognizes their device's MAC address and grants access automatically - no re-entry of credentials required. This directly satisfies both requirements: initial Portal authentication and seamless re-entry.

Why the distractors fail:

• A (MAC bypass) skips authentication entirely for pre-approved MACs - it never involves Portal login at all, so it doesn't fit a scenario where visitors must first authenticate via Portal.
• B (MAC authentication) authenticates users solely by MAC address checked against a server database - there's no Portal/username-password flow involved, making it unsuitable for visitor Portal scenarios.
• D (802.1X) is a port-based protocol using EAP with certificates or credentials, designed for corporate device/user authentication - it has no built-in "remember MAC after Portal login" mechanism.

Memory tip: Think of MAC Priority Portal as "Portal first, MAC passport after" - the Portal is the front door check-in, and the MAC address becomes your temporary visitor badge that lets you walk back in without signing in again.

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