In a typical security-based Portal authentication scenario, when a user successfully performs Portal authentication and disconnects from the network and reconnects within a certain period of time…

Question

Options

• ATRUE
• BFALSE

• A
  79% (46)
• B
  21% (12)

Explanation

Option A is correct because most enterprise Portal authentication systems implement a "MAC bypass" or "quick authentication" feature - once a device successfully completes Portal authentication, its MAC address is cached for a configurable period. If the user disconnects and reconnects within that window, the network device recognizes the cached MAC address and grants access automatically, skipping the Portal login page entirely. This design improves user experience without sacrificing security, since the MAC address was previously verified through a full credential-based authentication. Option B is wrong because it incorrectly implies this convenience feature does not exist, when in fact it is a standard behavior in products like Huawei's Agile Controller and similar portal authentication systems.

Memory tip: Think of it as a "grace period" - the network remembers your device's MAC address like a bouncer remembers your face after you've shown ID once. Re-entry within the grace window = wave you through; after it expires = show ID again.

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