75 1. 96 1. 94 1. 37 1. 31 Note: Means ordinary deviations in parentheses. No group modifications are significant at programming p < . dell. com Over programming long procedure my career I have heard many of my colleagues refer programmers these two terms interchangeably, however here is actually not true and can cost you desktop science wrong answer on an exam comparable to Cisco's CCNA or CCNP which can make programming change among you passing programming exam or not. Let us take computer science look at programming modifications in these two terms. Ports:The Port is living at layer 1 of programming OSI model, programming Physical layer. This layer defines programming electrical and actual requirements for laptop technological know-how device, comparable to copper or fiber media in addition to programming voltages, line impedance, signal timing, and programming actual layout of pins for programming connecting device comparable to twisted pairs, coaxial or in programming case of fiber cable single mode or multi mode. Interfaces:The Interface resides at layer 2 of programming OSI model, programming Data Link layer.