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 client's Wi-Fi connection drops every 60 minutes at exactly the same interval. What is the most likely cause?

    Answer: DHCP lease expiration and renewal failure

    Exactly timed disconnections at a fixed interval strongly suggest a DHCP lease expiration issue where the renewal is failing.

  2. When performing a post-change validation after an AP firmware upgrade, which test is most critical?

    Answer: Confirm clients can associate, authenticate, and pass traffic successfully

    Post-change validation must confirm the full client lifecycle—association, authentication, and data traffic—to ensure the upgrade did not break WLAN functionality.

  3. A wireless network experiences a sudden increase in beacon frames observed on a spectrum analyzer. This most likely indicates:

    Answer: A new AP or rouge device has come online broadcasting multiple SSIDs

    A surge in beacon frames typically means a new transmitter—possibly a rogue AP broadcasting multiple SSIDs—has appeared in the RF environment.

  4. During troubleshooting, you find an AP's 'retry rate' counter is above 20%. This metric indicates:

    Answer: Frame retransmissions are excessive, pointing to poor RF or interference

    A retry rate above 10-20% indicates the AP is frequently retransmitting frames because clients are not acknowledging them, which degrades throughput.

  5. A newly deployed outdoor AP operating on a DFS channel goes offline every afternoon. The most likely explanation is:

    Answer: Radar pulses from nearby aviation or weather radar triggering a DFS event

    DFS channels require APs to vacate the channel upon radar detection, and recurring afternoon events align with radar patterns such as airport approach or weather radar scanning.

  6. What is the correct procedure when an AP's configuration becomes corrupted and it boots into a recovery mode?

    Answer: Use the console port or recovery TFTP server to reload a valid firmware or configuration image

    Most enterprise APs support recovery via console port or TFTP boot, allowing a technician to restore firmware or configuration without hardware replacement.

  7. A technician is tasked with establishing a baseline for future WLAN troubleshooting. Which set of metrics should be documented?

    Answer: Channel utilization, noise floor, RSSI per AP, client counts, and throughput under normal load

    A useful WLAN baseline includes RF metrics (noise floor, RSSI, channel utilization) and performance metrics (client count, throughput) captured during normal operation for comparison during incidents.