Network Software Architecture Quiz
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Network Software Architecture Quiz

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@SharpConflict

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Questions and Answers

What is the purpose of a protocol in network communication?

  • To agree on the method of communication between parties (correct)
  • To perform error checks on the data packets
  • To provide a physical connection between two devices
  • To designate a specific hardware device for communication

    • What is meant by a protocol stack?

  • A security feature for network communication
  • A list of protocols used in a system, one per layer (correct)
  • An electronic device that stores data packets
  • A type of physical connection used in networking

    • Which statement accurately describes connection-oriented service?

  • It uses intermediate nodes without addressing messages
  • It guarantees reliable delivery and data acknowledgment (correct)
  • It is synonymous with store-and-forward switching
  • Messages are sent without prior setup or connection

    • Which of the following is NOT a design issue for protocol layers?

    <p>Data Encryption</p> Signup and view all the answers

    In connectionless service, how is each message routed within the system?

    <p>Each message carries its full destination address</p> Signup and view all the answers

    What is a characteristic of reliable services in network communication?

    <p>They never lose data and require acknowledgment of receipt</p> Signup and view all the answers

    Which method is NOT associated with connection-oriented service?

    <p>Routing through intermediate nodes</p> Signup and view all the answers

    What is the primary overhead introduced by reliable connection-oriented services?

    <p>Delays due to the acknowledgment process</p> Signup and view all the answers

    Study Notes

    Network Software Architecture and its Layers and Protocols

    • Network software architecture uses layers and protocols
    • Protocol hierarchies are essential for network communication
    • Design issues for network layers include addressing, error control, flow control (congestion), statistical multiplexing, routing, scalability, QoS (real-time), reliability, and security
    • Connection-oriented and connectionless services exist
    • A circuit is a connection with resources like fixed bandwidth (modeled on phone networks)
    • Connectionless service models the postal system; each message has a destination address and is routed independently
    • Reliability distinguishes services; reliable services (like message sequences and byte streams) prevent data loss through acknowledgment mechanisms. Unreliable services (like datagram service) do not acknowledge
    • Six service types exist: reliable message stream, reliable byte stream, unreliable connection, unreliable datagram, acknowledged datagram, and request-reply
    • Service primitives (LISTEN, CONNECT, RECEIVE, SEND, DISCONNECT) manage connection-oriented communication
    • The client-server interaction involves specific steps for requests and replies
    • A protocol is an agreement for communication between entities
    • Entities (peers) at corresponding layers in different machines communicate using protocols
    • A protocol stack lists all the protocols used in a system, one per layer
    • The philosopher-translator-secretary architecture illustrates the interaction between different parties, translating between different languages
    • An example of information flow in layer 5 is shown in a diagram

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    Related Documents

    Lecture4.pdf

    Description

    Test your knowledge on network software architecture, its layers, and protocols. Explore the design issues surrounding network layers, including addressing, error control, and service types. Understand the differences between connection-oriented and connectionless services, as well as the importance of reliability in data transmission.

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