Wireless Network Medium Access Control (MAC) Protocol
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Questions and Answers

What is the responsibility of the medium access control (MAC) protocol in a wireless network?

  • Enforce discipline in access of a shared channel
  • Support several types of traffic
  • Perform arbitration to prevent garbled data transmission (correct)
  • Maximize the utilization of the channel
  • Which property is required of MAC protocols in a wireless network?

  • Maximize the utilization of the channel
  • Minimize average latency of transmission (correct)
  • Enforce discipline in access of a shared channel
  • Be robust in the face of equipment failures
  • Why is collision detection scheme difficult to implement in a wireless environment?

  • Transmission ranges of wireless stations (correct)
  • No suitable arbitration scheme
  • Radio range limitations
  • Hidden and exposed terminals problems
  • What problem arises when nodes are not in the radio range of each other in a wireless environment?

    <p>Hidden Terminal Problem</p> Signup and view all the answers

    What does the MAC protocol sublayer enforce in a wireless network?

    <p>Discipline in access of a shared channel</p> Signup and view all the answers

    What is the primary problem Mobile IP was created to solve?

    <p>Maintaining the same IP address while traveling to a different network</p> Signup and view all the answers

    What is the role of the Mobile Node (MN) in Mobile IP?

    <p>It is a device that enables network roaming capabilities</p> Signup and view all the answers

    What happens when a device roams away from its home network in terms of IP routing?

    <p>The device is no longer reachable using normal IP routing</p> Signup and view all the answers

    What is the purpose of the Correspondent Node (CN) in Mobile IP?

    <p>To act as the end host to which the Mobile Node is corresponding</p> Signup and view all the answers

    What is the main function of Mobile IP in an IP network?

    <p>To retain the same IP address and maintain existing communications while traveling from one link to another</p> Signup and view all the answers

    In the context of Mobile IP, what is the responsibility of a Home Agent?

    <p>Maintaining an association between the home IP address of the Mobile Node and its care-of address</p> Signup and view all the answers

    What feature of Mobile IP ensures that a mobile end-system should continue to keep its IP address and there should not be any disruption of communication after any movement?

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

    During the Agent Discovery phase, what does an agent advertisement message contain?

    <p>Lists one or more available care-of addresses</p> Signup and view all the answers

    What is the purpose of Agent Solicitation in the context of Mobile IP?

    <p>To allow a Mobile Node to discover a Foreign or Home Agent</p> Signup and view all the answers

    What does the Care-of Address represent in Mobile IP?

    <p>The current location of the Mobile Node on the foreign or visited network</p> Signup and view all the answers

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