The Wireless Revolution: Cellular Systems and Standards Quiz
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Questions and Answers

What is the fundamental difference between GSM and CDMA cellular systems?

  • GSM is more widely used globally compared to CDMA
  • GSM requires SIM cards while CDMA does not
  • GSM uses TDMA while CDMA uses code division multiple access (correct)
  • GSM has better roaming options internationally compared to CDMA

    • Which of the following is a key advantage of 4G networks over 3G networks?

  • 4G offers higher transmission speeds of up to 100 Mbps
  • 4G is entirely packet-switched compared to 3G
  • 4G provides better quality streaming video compared to 3G
  • All of the above (correct)

    • Which cellular standard is more widely used globally?

  • Both GSM and CDMA are equally widely used globally
  • CDMA
  • GSM (correct)
  • It depends on the specific region

    • What is the typical range of transmission speeds for 3G networks?

    <p>144 Kbps to 2 Mbps</p> Signup and view all the answers

    Which of the following is a key difference between GSM and CDMA cellular systems?

    <p>GSM uses SIM cards while CDMA does not</p> Signup and view all the answers

    Which of the following is true about Wi-Fi (802.11) technology?

    <p>It is used for wireless LAN and wireless internet access via access points</p> Signup and view all the answers

    What is the main purpose of Bluetooth technology?

    <p>To create small Personal Area Networks (PAN) for linking up to 8 devices</p> Signup and view all the answers

    What is the main characteristic of WiMax (IEEE Standard 802.16)?

    <p>It provides a wireless access range of up to 31 miles and transmission speeds up to 75 Mbps</p> Signup and view all the answers

    What is the primary function of RFID (Radio Frequency Identification) technology?

    <p>To identify and track items using tags and readers that transmit data over a network</p> Signup and view all the answers

    What is the main difference between active and passive RFID tags?

    <p>Active RFID tags have batteries and can be rewritten, while passive tags are powered by radio frequency energy</p> Signup and view all the answers

    What is the primary function of wireless sensor networks (WSNs)?

    <p>To provide measurements of environmental conditions over large spaces using interconnected wireless devices</p> Signup and view all the answers

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