4) What are the (4) four different types of LAN topologies you will see in Networking? (4 Pts) 5) Explain what "Narrow-Band" and "Broad-Band" technologies are? Give two examples of each type that are used in networks. (4 Pts) 6) Where and what OSI network layer would you find a Preamble? What is it used for? (2 Pts)