Practice Test GeeksCWS Exam Practice Test
← All CWS Flashcard Decks

CWS Site Survey Fundamentals 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 CWS Site Survey Fundamentals flashcards as text

  1. During a passive wireless site survey, which action best describes what the surveyor does?

    Answer: Listens to existing RF traffic without transmitting probe frames

    A passive survey involves only listening to existing RF transmissions without the survey device transmitting, allowing unobtrusive measurement of existing signal levels.

  2. What is the primary purpose of measuring the Signal-to-Noise Ratio (SNR) during a site survey?

    Answer: To determine how well a signal can be distinguished from background RF noise

    SNR quantifies the difference between the desired signal strength and the ambient noise floor, directly predicting data rate and connection reliability.

  3. A site surveyor notices the noise floor in a warehouse is -85 dBm. An AP signal reads -75 dBm. What is the SNR?

    Answer: 10 dB

    SNR = Signal – Noise = -75 dBm – (-85 dBm) = 10 dB.

  4. Which document should a CWS candidate review BEFORE conducting an on-site survey to understand areas that may be off-limits or require escorts?

    Answer: A site security policy or facility access agreement

    A site security policy or facility access agreement identifies restricted zones, required escorts, and safety rules that must be followed during any physical survey.

  5. Which type of site survey uses software to model RF propagation before any hardware is installed?

    Answer: Predictive (RF modeling) survey

    A predictive survey uses floor plan data and propagation models in software to estimate coverage without deploying physical hardware.

  6. When performing a site survey in a building with multiple floors, what critical factor must be accounted for regarding RF propagation?

    Answer: Inter-floor signal bleed can cause co-channel interference between vertically adjacent APs

    RF signals pass through floors and ceilings, so APs on adjacent floors on the same channel can interfere with each other, requiring 3D channel planning.

  7. What is the recommended minimum RSSI value for basic Voice over Wi-Fi (VoWiFi) coverage in most enterprise deployments?

    Answer: -70 dBm

    Voice applications typically require a minimum RSSI of -67 to -70 dBm to maintain adequate SNR and low packet loss for acceptable call quality.