It's the layer that defines the physical traits from the transmission medium, such as voltage degrees, bit charges, connectors and cables. What's more, it handles the transmission and reception of bits about the medium. Clarification: The TCP/IP design consists of 4 layers: software, transport, World wide web, and network access. https://begindirectory.com/listings13295355/not-known-factual-statements-about-outcall-massage-therapist-near-me-reviews