2 4. Suppose within your web browser you click on a link to obtain a Web page that contains a small HTML file which references 6 small objects all on the same server. However, the IP address for the associated URL is not cached in your local host, so a DNS lookup is necessary. This lookup incurs an RTT of RTTDNS before your host receives the IP address from DNS. Let RTT, denote the RTT between your host and the server containing the webpage. Neglecting transmission times, how much time elapses from when you click on the link until you receive all the objects, with i) Non-persistent HTTP with no parallel TCP connections? ii) Non-persistent HTTP with 4 parallel connections? iii) Persistent HTTP