This chapter covers the following official CCNA Routing and Switching 200-120 exam topics:
► Recognize the purpose and functions of various network devices such as routers, switches, bridges, and hubs.
► Describe the purpose and basic operation of the protocols in the OSI and TCP/IP models.
► Predict the data flow between two hosts across a network.
► Describe the technological requirements for running IPv6 in conjunction with IPv4 such as dual stack.
Imagine opening up the hood of your car and listening to the engine. As you listen closely, you hear a slight tick tick tick as the belt moves along the pulleys. Now here’s the question: Is that a problem or is that normal? Without ...