CH2 SV_Part3mix

Chapter 2, Part 3

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CH2 SV_Part3mix

By S V
Created 3 years ago

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Chapter 2, Part 3
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Slide Content
  1. TCP/IP Model

    Slide 1 - TCP/IP Model

    • Built around the TCP/IP protocol suite
    • A protocol suite is a largenumber of relatedprotocols that worktogether to allownetworkedcomputers tocommunicate
  2. TCP/IP Model (Continued)

    Slide 2 - TCP/IP Model (Continued)

    • Layers with same names as OSI Model don’t function exactly the same
  3. Application Layer of TCP/IP Model

    Slide 3 - Application Layer of TCP/IP Model

    • OSI
    • TCP/IP
    • Encompasses same functions as these OSI Model layers
    • Application
    • Presentation
    • Session
  4. Transport Layer of TCP/IP Model

    Slide 4 - Transport Layer of TCP/IP Model

    • Functions the same as the Transport layer in OSI Model and part of Session layer
    • TCP and other similar protocols take on some of the function of the Session layer
    • Synchronize source and destination computers to set up the session between the respective computers
  5. Internet Layer of TCP/IP Model

    Slide 5 - Internet Layer of TCP/IP Model

    • Performs:
    • Same functions as OSI Model Network Layer
    • Many of the functions of the Logical Link Control sublayer of the OSI Model’s Data Link layer
    • Primary protocol is Internet Protocol (IP)
    • Also uses Address Resolution Protocol (ARP), which performs much of the LLC sublayer’s job in the area of physical addressing
  6. Network Interface Layer of TCP/IP Model

    Slide 6 - Network Interface Layer of TCP/IP Model

    • Performs much of the job of the MAC portion of the Data Link and Physical layers of the OSI Model
    • TCP/IP Model does not dictate what happens on Network Interface layer
    • TCP/IP protocol suite relies on standards created by the various standards organizations concerning how to encode bits onto media to do the work on this layer
  7. Alternate Layer Name

    Slide 7 - Alternate Layer Name

    • CompTIA Network+ objectives recognize alternate layer name for last layer in TCP/IP Model – the Link layer
  8. TCP/IP Model and its Relation to Protocols

    Slide 8 - TCP/IP Model and its Relation to Protocols

    • Different protocols located on the Application layer of the TCP/IP Model connect to different Transport layer protocols
    • Exception: DNS protocol on the Application layer connects to both TCP (Transport Control Protocol) and UDP (User Datagram Protocol) protocols on the Transport layer
  9. Summary

    Slide 9 - Summary

    • The OSI Model is a framework and reference model to explain how different networking technologies work together and interact.
    • The Physical layer of the OSI Model deals with all aspects of physically moving data from one computer to the next.
    • The Data Link layer of the OSI Model is responsible for moving frames from node to node or computer to computer.
  10. Summary (Continued)

    Slide 10 - Summary (Continued)

    • The two sublayers of the Data Link layer are the LLC and MAC.
    • The Network layer of the OSI Model is responsible for moving packets (data) from one end of the network to the other, called end-to-end communications.
    • The TCP/IP Model is built around the TCP/IP protocol suite.
  11. Summary (Continued)

    Slide 11 - Summary (Continued)

    • The Transport layer of the TCP/IP Model functions the same as the Transport layer in OSI Model and part of Session layer.
    • The Internet of layer of the TCP/IP Model Performs the same functions as the OSI Model Network layer and many of the functions of the LLC sublayer of the OSI Model Data Link layer.
    • The Network Interface layer of the TCP/IP Model performs much of the job of the MAC portion of the Data Link and Physical layers of the OSI Model.
  12. Self-Assessment Chapter 2

    Slide 12 - Self-Assessment Chapter 2

    • T/F – The OSI and TCP/IP models are hard and fast rules for everything done in networking
    • T/F – The models help to understand what goes on in a network but don’t dictate software and hardware
    • T/F - The Application Layer in the OSI model really refers to the type of game you are playing at the time
    • How many layers are there in the OSI Model? In the TCP/IP Model?
    • What does each of the layers “do” in the OSI Model?
    • T/F – The Transport Layer of the OSI Model (also Internet Layer of the TCP/IP Model) handle physical addressing
    • Which layer of the OSI model manages setting up the communication the time length of the communication?
    • Which layer of the OSI model would be involved in translation of a specific type of object sent?
    • If you have trouble with any of these, let me know