1. What data objects does a browser cache, and why is caching used?

2. List the layers in the TCP/IP Model, and give a brief explanation of each

3. When a user requests an FTP directory listing, how many TCP connections are formed? Explain.

4. List the three types of protocols used with email, and describe each

5. What is the overall purpose of the Domain Name System?

Please i need a new/creative answer not a copied or other expert work. Thanks