Consider 3 employees Ramesh, Suresh and Mahesh using three different computers working under Account-Network serviced by a single mail server. Assume Ramesh wish to send e-mail to Sonali, Suresh to...

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Extracted text: Consider 3 employees Ramesh, Suresh and Mahesh using three different computers working under Account-Network serviced by a single mail server. Assume Ramesh wish to send e-mail to Sonali, Suresh to Pooja and Mahesh to Vidhi, where Sonali, Pooja and Vidhi working under HRNetwork. What is the worst case and best case number of TCP connections that should be opened to enable this e-mail exchange if all the persons use a non-HTTP e-mail service?