Question: Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached

Suppose within your Web browser you click on a link to obtain a Web page. The IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary to obtain the IP address. Suppose that four DNS servers are visited before your host receives the IP address from DNS; the successive visits incur Round-Trip Time (RTT) of RTT1, RTT2, RTT3 and RTT4. Further suppose that the Web page associated with the link contains one HTML file and three very small image objects. Let RTT0 denote the RTT between the local host and the server containing the Web page. Assuming zero transmission time of the HTML file and image objects. How much time elapses from when the client clicks on the link until the client receives the whole Web page with non-persistent HTTP? (15 Points) How much time elapses with persistent HTTP? (15 Points)

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