CNC 311 Lecture #6: Transport Layer
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Questions and Answers

What is the purpose of making the PowerPoint slides freely available?

  • To prevent any modifications to the slides
  • To encourage their use in classes and mention their source (correct)
  • To restrict access to a specific group of faculty and students
  • To charge a fee for their use

    • What is the new assumption in rdt3.0 regarding the underlying channel?

  • The underlying channel has high latency
  • The underlying channel is error-free
  • The underlying channel can also lose packets (correct)
  • The underlying channel has limited bandwidth

    • What does the sender do if no ACK is received within a 'reasonable' amount of time?

  • Discards the packet
  • Waits indefinitely for an ACK
  • Sends a duplicate packet
  • Retransmits the packet (correct)

    • What information will be helpful when dealing with packet loss in the underlying channel?

    <p>Checksum, sequence number, and ACKs (D)</p> Signup and view all the answers

    What is requested when using the PowerPoint slides in a class according to the material's copyright notice?

    <p>Mention their source (D)</p> Signup and view all the answers

    What is the purpose of making the PowerPoint slides freely available?

    <p>To allow faculty, students, and readers to use and modify them (C)</p> Signup and view all the answers

    What is the new assumption in rdt3.0 regarding the underlying channel?

    <p>The underlying channel can also lose packets (A)</p> Signup and view all the answers

    What is requested when using the PowerPoint slides in a class according to the material's copyright notice?

    <p>Mention their source (A)</p> Signup and view all the answers

    What will be helpful when dealing with packet loss in the underlying channel?

    <p>Checksum, sequence numbers, ACKs, and retransmissions (A)</p> Signup and view all the answers

    What does the sender do if no ACK is received within a 'reasonable' amount of time?

    <p>Retransmits if no ACK received in this time (C)</p> Signup and view all the answers

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