About This Chapter
OSI & TCP/IP Overview - Chapter Summary
This self-paced chapter offers an entertaining and comprehensive overview of OSI and TCP/IP. Get up to speed with the basics of network protocols, layers of OSI models and more by studying bite-sized lessons. Our instructors make the lessons fun and easy to review. Paired with each lesson is a mini quiz designed to quickly and effectively assess your knowledge of concepts covered. Visit the dashboard if you'd like to track your progress through this chapter or submit lesson topic questions to our experts. All study tools in this chapter are available 24 hours a day and accessible via your chosen computer or mobile device. After completing this chapter, you will be ready to:
- Define communication protocol
- Explain how to use the OSI model to send and receive data
- List components of the physical layer of the OSI model
- Describe the design of the data link and network layers of the OSI model
- Discuss functions of the transport, session, presentation and application layers of the OSI model
- Showcase and understanding of Internet connectivity and communication standards
1. What is a Network Protocol? - Types & List
Network protocols. You use them every day. Some even every minute, yet most people wouldn't know it. Network protocols are simply the rules the internet lives by. In this lesson, we'll learn what network protocols and look at the different types.
2. What is Communication Protocol? - TCP/IP & Explanation
In this lesson, you'll learn about the Internet's protocol suite, composed of the Transmission Control Protocol (TCP), and the Internet Protocol (IP); abbreviated as TCP/IP. Then you'll be able to test your knowledge with a quiz!
3. OSI Model: Using Open Systems Interconnection to Send and Receive Data
The Open System Interconnection (OSI) model describes how data is sent and received over a network. It consists of seven layers: the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. This lesson discusses how the OSI model works and the role of each layer for transmitting messages.
4. Physical Layer of the OSI Model: Definition, Components & Media
This lesson discusses the 7th or physical layer of the OSI model. It also discusses the various components and media used in this layer for the transfer of data. Wired data transmission in the physical layer and its associated components will be broadly covered.
5. Data Link Layer of the OSI Model: Protocol, Functions & Design
We all want our information to get where it is supposed to go quickly and without any problems. In network communication, this starts in the second layer, the data link layer.
6. Network Layer of the OSI Model: Functions, Design & Security
In this lesson, we'll introduce the network layer of the OSI model. The network layer is the stage concerned with host-to-host communication tasks like protocols, switching, routing, and addressing.
7. Transport Layer of the OSI Model: Functions, Security & Protocol
In this lesson, we'll explore the seven layers comprising the OSI model with a focus on the transport layer. During our discussion, we'll define the transport layer, examine its functions and go over the supporting network protocols.
8. Session Layer of the OSI Model: Functions, Protocols & Examples
In this lesson, we will discuss the session layer, layer 5 of the OSI model. We will talk about how the session layer sets up, manages, and maintains multiple network communicative sessions, and you'll learn about APIs like NetBIOS and TCP/IP.
9. Presentation Layer of the OSI Model: Definition, Functions & Protocols
In this lesson, we will explore the Open Systems Interconnect (OSI) model and take an in-depth look at the presentation layer. We'll also use an illustration to see how presentation layer data flow occurs within the seven functional layers of the OSI model.
10. Application Layer of the OSI Model: Definition, Functions & Protocols
Learn about how the Application Layer of the OSI model allows us to perform basic daily activities. Go over the definition of the Application Layer as well as its various functions and protocols.
11. Internet Connectivity and Communication Standards
This lesson explores the network protocols that aid in data communication. It also discusses networking standards (formal and de facto) and introduces some of the organizations that are involved in establishing these networking standards.
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