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N10-009 Domain 5: Network Troubleshooting

Wi-Fi clients connect but captive portal never appears. Check?

Multiple choice — select one answer

Answer choices

  1. a. Advertise/install correct phase 2 selectors/static routes
  2. b. DNS and firewall rules for walled garden URLs
  3. c. Replace patch cable and inspect SFP/transceiver
  4. d. Implement QoS marking/queuing for voice VLAN

Architectural breakdown & explanation

Portals require DNS/HTTP allow lists to redirect.

Correct answer(s): b. DNS and firewall rules for walled garden URLs

Exam domain: Domain 5: Network Troubleshooting (22% weight on the official guide).

Official documentation & study links

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