Please answer both questions

Q4. Suppose a user at the University of Sharjah, while sitting in a computer lab, opens a web browser. Assume that all DNS caches are empty in the lab and in the University as well. The user types the following URL into the browser bar and hits enter: http://www.emiratesacademy.edu/ List all DNS queries and responses that occur before the browser opens a connection to the remote webserver. Assume iterative queries are always used. Q5. Suppose Bob is a BitTorrent user, however, he does not want to share or upload any data to any other peers (the so called free-riding). a. Bob claims that he can receive a complete copy of the file that is shared by the swarm. Is Bob's claim possible? Why or why not? b. Bob further claims that he can further make his "free riding" more efficient by using a collection of multiple computers (with distinct IP addresses) in the computer lab in his department. How can he do that