Introduction to OSI Model's Transport Layer
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Questions and Answers

What is the primary function of the transport layer in the OSI model?

  • Ensuring secure communication between devices
  • Managing the network infrastructure
  • Overseeing the delivery of data from one application program to another (correct)
  • Providing physical addressing for data transmission

    • What is one of the services provided by transport layer protocols?

  • Data encryption
  • Physical addressing
  • Reliable delivery (correct)
  • Network routing

    • How does the transport layer differ from the data link layer?

  • The transport layer provides services across an internetwork made of many networks, while the data link layer operates within a single network (correct)
  • The transport layer ensures reliable delivery, while the data link layer focuses on multiplexing
  • The transport layer focuses on physical addressing, while the data link layer focuses on end-to-end delivery
  • The transport layer controls only one lower layer, while the data link layer controls all three lower layers

    • What is the ultimate goal of the transport layer?

    <p>To provide efficient, reliable, and cost-effective service to its users</p> Signup and view all the answers

    Which entities does the transport layer deal with in its operations?

    <p>Other host’s transport entity and processes running on the host</p> Signup and view all the answers

    Study Notes

    Primary Function of the Transport Layer

    • Manages end-to-end communication between devices across a network.
    • Ensures reliable data transfer by providing error detection and recovery.

    Services Provided by Transport Layer Protocols

    • Offers flow control to manage the rate of data transmission, preventing congestion.
    • Facilitates segmentation and reassembly of large messages into manageable packets.
    • Transport layer operates at a broader level, providing services to applications across networks, while data link layer manages communications between directly connected devices on the same network.
    • Transport layer is concerned with end-to-end delivery, while the data link layer deals with physical addresses and control of physical media.

    Ultimate Goal of the Transport Layer

    • To ensure reliable and efficient data transmission between devices, ultimately delivering data accurately and in the correct order.

    Entities Dealt with by the Transport Layer

    • Interacts with application layer protocols to facilitate communication between different software applications.
    • Engages with the network layer to transmit segments to the destination host effectively.

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    Description

    Test your knowledge on the core of the OSI model - the transport layer. This layer oversees the delivery of data between application programs on different devices and acts as a liaison between upper-layer and lower-layer protocols.

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