CompTIA Network+: OSI Model Layers & Data Encapsulation

CompTIA    |    Intermediate
  • 14 videos | 1h 21m 13s
  • Includes Assessment
  • Earns a Badge
Rating 4.6 of 369 users Rating 4.6 of 369 users (369)
The Open Systems Interconnection, or OSI, model is used to describe how computer systems communicate with each other. Frequently used for troubleshooting network problems, the seven layers of the OSI model are concepts with which all networking professionals should be familiar In this course, you'll learn about each layer of the OSI model. You'll outline how human-readable information, such as emails and chat messages, are transferred over a network, as well as the path this information takes along the OSI model. You'll also examine data encapsulation and decapsulation within the context of the OSI model. You'll outline characteristics for Ethernet headers, IP headers, and TCP/UDP headers, and learn to differentiate between synchronization (SYN) and acknowledgement (ACK) flags. Lastly, you'll recognize the primary differences between maximum transmission unit, or MTU, and maximum segment size, or MSS, and how these concepts relate to data being transmitted over a network.

WHAT YOU WILL LEARN

  • Discover the key concepts covered in this course
    Outline the features and purpose of the open systems interconnection (osi) model
    Outline the devices, applications, protocols, and services that function at the physical layer
    Describe the devices, applications, protocols, and services that function at the data link layer
    Outline the devices, applications, protocols, and services that function at the network layer
    Describe the devices, applications, protocols, and services that function at the transport layer
    Outline the devices, applications, protocols, and services that function at the session layer
  • Recognize the devices, applications, protocols, and services that function at the presentation layer
    Describe the devices, applications, protocols, and services that function at the application layer
    Outline the characteristics and purpose of ethernet headers, ip headers, and tcp/udp headers
    Outline the features and purpose of tcp flags and differentiate between synchronization (syn) and acknowledgement (ack)
    Differentiate between fixed and variable payloads
    Differentiate between maximum transmission unit (mtu) and maximum segment size (mss)
    Summarize the key concepts covered in this course

IN THIS COURSE

  • 1m 48s
  • 7m 54s
    In this video, you will learn how to outline the features and purpose of the Open Systems Interconnection (OSI) model. FREE ACCESS
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    3.  OSI Layer 1 - Physical
    3m 39s
    In this video, learn how to outline the devices, applications, protocols, and services that function at the physical layer. FREE ACCESS
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    4.  OSI Layer 2 - Data Link
    7m 26s
    Upon completion of this video, you will be able to describe the devices, applications, protocols, and services that function at the data link layer. FREE ACCESS
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    5.  OSI Layer 3 - Network
    8m 40s
    In this video, find out how to outline the devices, applications, protocols, and services that function at the network layer. FREE ACCESS
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    6.  OSI Layer 4 - Transport
    7m 51s
    Upon completion of this video, you will be able to describe the devices, applications, protocols, and services that function at the transport layer. FREE ACCESS
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    7.  OSI Layer 5 - Session
    4m 13s
    Find out how to outline the devices, applications, protocols, and services that function at the session layer. FREE ACCESS
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    8.  OSI Layer 6 - Presentation
    7m 19s
    Upon completion of this video, you will be able to recognize the devices, applications, protocols, and services that function at the presentation layer. FREE ACCESS
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    9.  OSI Layer 7 - Application
    6m 19s
    After completing this video, you will be able to describe the devices, applications, protocols, and services that function at the application layer. FREE ACCESS
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    10.  Ethernet/IP Headers
    10m 49s
    Find out how to outline the characteristics and purpose of Ethernet, IP, and TCP/UDP headers. FREE ACCESS
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    11.  TCP Flags
    5m 15s
    In this video, you will learn how to outline the features and purpose of TCP flags and differentiate between synchronization (SYN) and acknowledgement (ACK) flags. FREE ACCESS
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    12.  Fixed and Variable Payloads
    3m 8s
    In this video, you will learn the difference between fixed and variable payloads. FREE ACCESS
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    13.  MTU vs. MSS
    5m 48s
    Learn how to differentiate between maximum transmission unit (MTU) and maximum segment size (MSS). FREE ACCESS
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    14.  Course Summary
    1m 5s

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