2.3 Compare and contrast protocols for wireless networking.
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Questions and Answers

Which of the following technologies operates on a peer-to-peer basis?

  • Bluetooth
  • RFID
  • Wi-Fi
  • NFC (correct)

    • Which technology is commonly found in point-of-sale card readers and stickers?

  • Bluetooth
  • NFC
  • RFID (correct)
  • Wi-Fi

    • Which technology is typically wearable?

  • Wi-Fi
  • NFC
  • RFID
  • Bluetooth (correct)

    • Which technology is a variant of RFID?

    <p>NFC</p> Signup and view all the answers

    Which technology has a range of up to 2 inches?

    <p>NFC</p> Signup and view all the answers

    Which technology is commonly associated with the 2.4 GHz frequency?

    <p>Bluetooth</p> Signup and view all the answers

    Which technology uses both the 2.4 GHz and 5 GHz bands?

    <p>Wi-Fi</p> Signup and view all the answers

    Which technology requires a dual-band adapter to work with 2.4 GHz?

    <p>RFID</p> Signup and view all the answers

    Which technology can support clients on 2.4 GHz or legacy standards?

    <p>Wi-Fi</p> Signup and view all the answers

    Which technology can support up to eight streams?

    <p>Wi-Fi</p> Signup and view all the answers

    Which technology is used to configure a bridge between two networks?

    <p>Long-range fixed wireless adapter</p> Signup and view all the answers

    What is the purpose of Global Positioning System (GPS)?

    <p>Determining a device's latitude and longitude</p> Signup and view all the answers

    Which technology is a peer-to-peer version of RFID?

    <p>Near-field communication (NFC)</p> Signup and view all the answers

    What is the purpose of an indoor positioning system (IPS)?

    <p>Determining a device's location</p> Signup and view all the answers

    Which technology is used for digital payments?

    <p>Near-field communication (NFC)</p> Signup and view all the answers

    What is the purpose of gain in antenna signals?

    <p>To focus the signal in a single direction</p> Signup and view all the answers

    What is the purpose of effective isotropic radiated power (EIRP)?

    <p>To boost the signal strength</p> Signup and view all the answers

    Which band allows legacy connections with WPA2-Personal security?

    <p>2.4 GHz</p> Signup and view all the answers

    Which Wi-Fi standard is officially designated as Wi-Fi 4?

    <p>802.11n</p> Signup and view all the answers

    What is the width of each channel in a 2.4 GHz network?

    <p>5 MHz</p> Signup and view all the answers

    Which frequency band is used in unlicensed spectrum for long-range fixed wireless?

    <p>Both 2.4 GHz and 5 GHz</p> Signup and view all the answers

    What is the width of each channel in a 2.4 GHz network?

    <p>5 MHz</p> Signup and view all the answers

    How many non-overlapping channels are there in the 5 GHz band?

    <p>23</p> Signup and view all the answers

    Which frequency band must use DFS to prevent interference with radar/satellite signals?

    <p>5 GHz</p> Signup and view all the answers

    Which frequency band has a higher chance of overlap/interference in separate networks?

    <p>2.4 GHz</p> Signup and view all the answers

    Which Wi-Fi standard works in both the 2.4 GHz and 5 GHz bands?

    <p>Wi-Fi 6</p> Signup and view all the answers

    Which Wi-Fi standard works only at 5 GHz?

    <p>Wi-Fi 5</p> Signup and view all the answers

    Which frequency band has regulatory limits on power output constraining ranges of Wi-Fi devices?

    <p>2.4 GHz</p> Signup and view all the answers

    Which frequency band is less effective at penetrating solid surfaces and does not support maximum ranges?

    <p>5 GHz</p> Signup and view all the answers

    Which standard is officially designated as Wi-Fi 4 and works in the 2.4 GHz band?

    <p>802.11n</p> Signup and view all the answers

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