Chapter 1
Describe How a Network Works
The Cisco CCNA exam objectives covered in this chapter include the following:
- Describe the purpose and functions of various network devices.
- Select the components required to meet a network specification.
- Use the OSI and TCP/IP models and their associated protocols to explain how data flows in a network.
- Describe common networked applications, including web applications.
- Describe the purpose and basic operation of the protocols in the OSI and TCP models.
- Describe the impact of applications (Voice over IP and Video over IP) on a network.
- Interpret network diagrams.
- Determine the path between two hosts across a network.
- Describe the components required for network and Internet communications.
- Identify and ...
