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Computer Networks Lecture 7: Transport Layer and Network Layer Protocols
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Computer Networks Lecture 7: Transport Layer and Network Layer Protocols

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Questions and Answers

What is the main responsibility of the transport layer in a computer network?

  • Providing logical communication between application processes on different hosts (correct)
  • Ensuring physical data transfer between hosts
  • Handling communication between network layer protocols
  • Establishing communication between data link layers
  • Which functionality is NOT a responsibility of the transport layer in a computer network?

  • Multiplexing and demultiplexing
  • Congestion control
  • Routing packets between hosts (correct)
  • Reliable data transfer
  • Which transport layer protocol provides connection-oriented and reliable transport?

  • TCP (correct)
  • ICMP
  • UDP
  • IP
  • What function does UDP perform in a computer network?

    <p>Connectionless/unreliable transport</p> Signup and view all the answers

    What communication does the network layer in a computer network facilitate?

    <p>Communication between hosts</p> Signup and view all the answers

    What is the main difference between connection-oriented protocols and connectionless protocols?

    <p>Connection-oriented protocols establish a dedicated connection between devices before transmitting data, while connectionless protocols don’t establish a dedicated connection before transmitting data.</p> Signup and view all the answers

    What feature is unique to TCP (Transmission Control Protocol) and not available in UDP (User Datagram Protocol)?

    <p>Congestion control</p> Signup and view all the answers

    What is the purpose of multiplexing at the sender's side in the transport layer?

    <p>To collect messages from multiple sockets and add transport layer info for demultiplexing</p> Signup and view all the answers

    What type of protocol ensures that all data packets are delivered without any errors?

    <p>Connection-oriented protocol</p> Signup and view all the answers

    Which service is not available in both UDP and TCP?

    <p>Determined delay guarantees</p> Signup and view all the answers

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