1. Explain explain why we have both IP and MAC addresses. What is the history? 2. How is critical thinking valuable on the job with respect to engineering computer science? 3. What is a well known port? What is their purpose? 4. What is "state" with respect to a protocol? 5. Explain what the original web was like 6. Using a app (not the browser) for a client GUI (Choose all that apply) a) is probably easier to program b) probably has more features that a programmer can use c) is probably slow d) can never be as good as the web version e) is probably what the company wants the user to use