Suppose an HTTP client makes a request to the gaia.cs.umass.edu web server.  The client has never before requested a given base object, nor has it communicated recently with the gaia.cs.umass.edu server. You can assume, however, that the client host knows the IP address of gaia.cs.umass.edu. How many round trip times (RTTs) are needed from when the client first makes the request to when the base page is completely downloaded, assuming the time needed by the server to transmit the base file into the server's link is equal to 1/2 RTT and that the time needed to transmit the HTTP GET into the client's link is zero?  (You should take into account any TCP setup time required before the HTTP GET is actually sent by the client,  the time needed for the server to transmit the requested object, and any propagation delays not accounted for in these amounts of time.)  Choices A.0.5 RTT B.3.5 RTT C.1.5 RTT D.2.5 RTT E.0 RTT

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