Practice Test Geeks(CWT) Certified Wireless Technician Practice Test
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Troubleshooting & Maintenance Procedures Flashcards

7 cards from real CWT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Troubleshooting & Maintenance Procedures flashcards as text

  1. A WLAN controller shows an AP in 'discovery' state and it never transitions to 'joined.' What should you verify first?

    Answer: That the AP can reach the WLC IP address and UDP port 5246/5247 are open

    CAPWAP control traffic uses UDP 5246/5247, and if these ports are blocked the AP cannot join the WLC.

  2. A client can connect to the WLAN but cannot reach the internet. Other clients on the same SSID work fine. What is the most likely cause?

    Answer: The client has an incorrect IP address or DNS configuration

    If other clients on the same SSID work, the issue is client-specific—most likely an incorrect IP, subnet mask, gateway, or DNS setting.

  3. During a post-installation walkthrough, you notice dead spots in areas predicted to have coverage. What is the most common cause?

    Answer: Obstructions not accounted for in the predictive site survey

    Predictive surveys use building blueprints that may not reflect actual RF-attenuating materials like dense walls, metal shelving, or HVAC ducts.

  4. Which log entry on a wireless controller most directly indicates a rogue AP has been detected?

    Answer: Rogue AP containment initiated for BSSID XX:XX:XX:XX:XX:XX

    A rogue AP containment log entry directly confirms the controller's WIDS/WIPS has identified and is responding to an unauthorized AP.

  5. A technician performs a packet capture and sees many 802.11 Probe Request frames but few Probe Responses. This suggests:

    Answer: The AP is overloaded and dropping management frames

    If an AP is heavily loaded or experiencing resource exhaustion, it may fail to respond to client probe requests in a timely manner.

  6. What is the purpose of running 'clear arp' on a wireless controller during troubleshooting?

    Answer: To remove stale ARP cache entries that may cause connectivity issues

    Stale ARP entries can cause the controller to forward traffic to an incorrect MAC address, and clearing the ARP table forces re-resolution.

  7. When troubleshooting 802.1X authentication failures, which server log should you review first?

    Answer: RADIUS server authentication log

    802.1X authentication relies on RADIUS, so the RADIUS server log will contain detailed accept/reject records and failure reasons.