Practice Test Geeks(CWS) Certified Wireless Specialist Practice Test
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Quality Control & Process Improvement Flashcards

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

Read the first 7 Quality Control & Process Improvement flashcards as text

  1. Which tool is MOST useful for verifying that an 802.11 network is correctly transmitting on its configured channel and at the expected output power?

    Answer: Spectrum analyzer

    A spectrum analyzer displays actual RF transmissions, confirming channel usage and power output at the physical layer.

  2. A wireless technician documents that measured SNR at a client location is 18 dB. For standard voice and data applications, this reading is considered:

    Answer: Marginal — borderline for reliable operation

    An SNR of 18 dB is generally considered marginal; most vendors recommend 25 dB or higher for reliable voice and data.

  3. In the context of WLAN quality assurance, 'passive survey' differs from 'active survey' in that passive survey:

    Answer: Captures beacon and probe frames without associating to any AP

    Passive surveys listen to all 802.11 frames in the air without joining any network, providing an objective view of all RF activity.

  4. Which process improvement principle emphasizes eliminating waste and creating more value with fewer resources?

    Answer: Lean manufacturing

    Lean focuses on identifying and eliminating non-value-adding activities (waste) to improve efficiency and quality.

  5. After a wireless upgrade, users report that roaming between APs is causing noticeable call drops. The MOST likely QC oversight is:

    Answer: Missing or misconfigured fast roaming protocols (802.11r/k/v)

    Without fast roaming protocols, clients experience delays during re-authentication that are long enough to drop voice calls.

  6. A quality assurance review finds that cable runs to several APs exceed the 100-meter Ethernet limit. The RECOMMENDED corrective action is:

    Answer: Install a PoE extender or fiber with a media converter at the midpoint

    A PoE extender or fiber run with a media converter maintains signal integrity and PoE delivery beyond the 100-meter copper limit.

  7. Which type of wireless site survey is specifically designed to validate that a completed installation matches the approved RF design?

    Answer: Validation (post-deployment) survey

    A post-deployment validation survey compares actual measured coverage and performance against the predictive design to confirm QC compliance.