Assume you use your Web browser to access a Web page by clicking on a link. Because the IP address for the related URL is not cached on your local host, a DNS search is required to acquire it. Assume that n DNS servers are contacted before your host obtains the IP address from DNS; each subsequent visit incurs an RTT of RTT1,..., RTTn.   Assume that the Web page connected with the link has only one item, which is a little bit of HTML text. Let RTT0 represent the RTT between the local host and the server that has the item. Assuming that the item has a zero transmission time, how much time elapses between when the client clicks on the link and when the client receives the object?

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