Problem 4: Suppose you click on a link to obtain a Web page in your Web browser. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain this IP address. Assume that n DNS servers are visited before your host receives the IP address from DNS; the successive visits incur an RTT of RTT1,.. ,RTTn. Further assume that the Web page associated with the link contains exactly one object, consisting of a small amount of HTML text. Let RTTO denote the RTT between the local host and the server containing this object. Assuming zero transmission time of the object, how much time t will take from when the client clicks on the link until the client receives the object? Problem 5: Referring to the above problem, suppose this HTML file references 8 very small objects on the same server. Neglecting transmission times, how much time elapses with (i) Non- persistent HTTP with no parallel TCP connections? (ii) Non-persistent HTTP with the browser configured for 5 parallel connections? (iii) Persistent HTTP