Compared with 802.1X authentication, what are the advantages of Porta1 authentication? (Multiple choice)

Question

Options

• APortal can be used in dumb terminal access scenarios
• BPortal authentication is more suitable for temporary visitors to the network
• CPortal authentication does not require the installation of client software
• DPortal authentication is compatible with MAC bypass authentication

• A
  100% (25)

Explanation

All four options are correct advantages of Portal (captive portal) authentication over 802.1X. Portal works via a standard web browser redirect, so it requires no client software installation (C), making it ideal for temporary visitors (B) who can't or shouldn't have enterprise supplicants configured on their devices. Because Portal can be paired with MAC Authentication Bypass (MAB), it also handles dumb terminals like printers, IoT sensors, and IP cameras (A) that have no browser or 802.1X supplicant at all - the switch authenticates them by MAC address instead (D). By contrast, 802.1X demands a configured supplicant on every endpoint, which is impractical for guests and impossible for headless/dumb devices.

Since all four choices are correct, there are no distractors to eliminate here - the exam is testing whether you know the full breadth of Portal's advantages, so don't stop at just C.

Memory tip: Think "PORT-al opens the door for anyone" - Printers/dumb terminals, Outside visitors (guests), Requires no client, Ties in MAC bypass. If a device can't speak 802.1X, Portal (or MAB under Portal) is the fallback solution.

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