Chapter 1. Introduction to TCP/IP Transport and Applications
This chapter covers the following exam topics:
1.0 Network Fundamentals
1.5 Compare TCP to UDP
4.0 IP Services
4.3 Explain the role of DHCP and DNS in the network
The CCNA exam focuses mostly on functions at the lower layers of TCP/IP, which define how IP networks can send IP packets from host to host using LANs and WANs. This chapter explains the basics of a few topics that receive less attention on the exams: the TCP/IP transport layer and the TCP/IP application layer. The functions of these higher layers play a big role in real TCP/IP networks. Additionally, many of the security topics in Parts I and II of this book, and some of the IP services topics in Part III, require you to ...
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