Anthony is an intern for JAXRUN Consulting, an enterprise network-support consulting firm based in Pittsburgh, Pennsylvania. He is currently enrolled in a Cisco Enterprise Network Engineering course at Capella University. During the first week of class, he learns about the OSI and TCP/IP network communication models. Being the passionate student that he is, Anthony wants to find out exactly how to apply these models in the real world. The next day at work, he pulls aside a few of the Cisco consultants and asks them how they use the OSI and TCP/IP models in completing their day-to-day tasks.

Assume that you are a Cisco support consultant for JAXRUN. Answer the following questions:

• How important is understanding the OSI and TCP/IP models for a Cisco network engineer?
• How does a Cisco network engineer use the OSI and TCP/IP models in real-world tasks?