When an enterprise deploys a WLAN network, user access authentication uses Portal authentication. After successful authentication, the network can be reconnected within a certain period of time…

Question

Options

• AExternal Portal server authentication
• BMAC authentication with Portal server
• CMAC-first Portal authentication
• DBuilt-in Portal server authentication

• A
  3% (1)
• B
  17% (6)
• C
  74% (26)
• D
  6% (2)

Explanation

MAC-first Portal authentication works by recording a device's MAC address upon successful Portal login; on subsequent connection attempts within the validity window, the system checks the MAC address first - and if recognized, grants access without prompting for Portal credentials again, which is exactly the behavior described. Option A (External Portal server) simply offloads the Portal page to a third-party server but provides no mechanism to skip re-authentication on reconnect. Option B (MAC authentication with Portal server) uses MAC address as the primary authentication method with Portal as a supplement - it's MAC-driven, not Portal-driven with MAC as a bypass shortcut. Option D (Built-in Portal server) only describes where the Portal server is hosted (on the access device itself), not how re-authentication is handled.

Memory tip: Think of the "MAC-first" name literally - the system checks the MAC address first, and if it matches a previously authenticated user, it skips the Portal form entirely; the word order tells you the logic order.

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