It's the layer that defines the Actual physical attributes on the transmission medium, for instance voltage ranges, little bit fees, connectors and cables. Furthermore, it handles the transmission and reception of bits over the medium. Introduction:Electronic mail, usually often called electronic mail, is a method of exchanging messages over the https://johnathanjorst.blogdomago.com/35411968/not-known-factual-statements-about-outcall-massage-therapist-near-me-reviews