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Technology & Digital Tools Flashcards

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

Read the first 7 Technology & Digital Tools flashcards as text
  1. A CWS technician is reviewing a spectrum analyzer display and sees a 22 MHz wide signal centered at 2.437 GHz that is not 802.11. What type of device is MOST likely causing this interference?

    Answer: A frequency-hopping cordless phone

    Older 2.4 GHz frequency-hopping spread spectrum (FHSS) cordless phones sweep across the band and can appear as wide, persistent interference on a spectrum analyzer.

  2. When using a Wi-Fi analyzer app on a smartphone for a quick site survey, what is a significant limitation compared to a dedicated survey tool like Ekahau?

    Answer: Smartphone apps cannot correlate signal measurements with floor plan locations

    Smartphone Wi-Fi analyzer apps show signal strength in real time but cannot map readings to physical locations on a floor plan the way dedicated tools can.

  3. In wireless network management, what does a 'client roam event' log entry typically indicate?

    Answer: A client moved from one AP to another while maintaining layer 3 connectivity

    A roam event indicates a client transitioned its association from one BSS to another while retaining its IP address, maintaining seamless layer 3 connectivity.

  4. Which protocol does Cisco's Lightweight AP (LWAP) architecture use to communicate between APs and the wireless LAN controller?

    Answer: CAPWAP (Control and Provisioning of Wireless Access Points)

    CAPWAP is the IETF standard protocol (RFC 5415) used in centralized WLAN architectures for control and data tunneling between APs and WLCs.

  5. A technician configures syslog on a wireless LAN controller to send event messages to an external server. What is the default UDP port used by syslog?

    Answer: 514

    Syslog uses UDP port 514 by default for sending log messages from network devices to a centralized syslog server.

  6. In the context of wireless site surveys, what is the recommended minimum signal-to-noise ratio (SNR) for supporting voice over Wi-Fi (VoWiFi) applications?

    Answer: 25 dB

    VoWiFi applications typically require a minimum SNR of 25 dB to support the low latency and reliable packet delivery needed for acceptable call quality.

  7. A technician needs to generate a detailed RF report showing channel overlap, co-channel interference risk, and AP density recommendations. Which professional tool is BEST suited for this?

    Answer: Ekahau AI Pro or AirMagnet Survey Pro with reporting module

    Professional site survey tools like Ekahau AI Pro include comprehensive reporting modules that export RF analysis reports with channel plans, coverage maps, and interference data.