1. What are the differences between the Client-server and Peer-to-Peer communication models? 2. List the five HTTP responses categories with a one-sentence description for each type. 3. What does stateless mean in HTPP protocol? 4. What is an HTTP cookie, and why is it used? 5. What are the differences between Non-persistent HTTP and persistent HTTP? 6. List two HTTP methods (actions) with a one-sentence description. 7. What is the difference between the conditional get and get method in HTTP? 8. What is the key objective of HTTP 2? 9. List two DNS resolution methods with two sentences (maximum) description. 10. List three DNS records types with a one-sentence description each. 11. List three challenges of streaming media over the internet. 12. In your words, describe the spatial and temporal coding (three sentences at max for each type)