Chapter 2: TCP/IP Layers and Protocols
Exam Objectives
Describing the purpose and function of each TCP/IP layer
Understanding data encapsulation
Identifying and explaining data flow through the OSI layers
Describing the purpose and basic operation of the protocols in the TCP/IP family
Describing common Ethernet wiring and cabling standards
Examining hardware addressing and bridge segmentation at the data link layer
Interpreting differences between routing and routed protocols
Identifying distance vector and link-state protocols
Determining TCP transport mechanisms
Describing the protocols used at the application layer for network and Internet communications
Differentiating between the OSI and TCP layered models
It is time to dig a little deeper into the TCP/IP family of protocols and reveal a little more of the OSI and DoD models. I break down each layer inside the OSI model and magnify its inner workings. Protocols that reside at each of these layers are discussed along with the rules and standards for transmitting, sending, and verifying data. Then, the TCP/IP model is compared to the OSI framework, providing required knowledge to pass the CCNA examination. While the CCNA exam will test your knowledge in both areas of the OSI model and the TCP/IP model, you should memorize each layer in each of the models and know all their functionalities. By the time you are done studying and are ready to take the exam, you should be dreaming in layers!
Information Exchange through the OSI ...
