Chapter 2. The Open Systems Interconnection Specifications
THE FOLLOWING COMPTIA NETWORK+ EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:
4.1 Explain the function of each layer of the OSI model
Layer 1 – physical
Layer 2 – data link
Layer 3 – network
Layer 4 – transport
Layer 5 – session
Layer 6 – presentation
Layer 7 – application
In this chapter, I'm going to dissect the Open Systems Interconnection (OSI) model and describe each part to you in detail, because you need a solid foundation on which to build your networking knowledge. The OSI model has seven hierarchical layers that were developed to enable different networks to communicate reliably between ...
Get CompTIA Network+® Study Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
