Answers and explanations

  1. Industry standard frameworks are a set of criteria within an industry, relating to carrying out operations known as best practices. This is the best way that the operations should be set up and carried.
  2. The Open Systems Interconnection model (OSI model) is a conceptual model that standardizes the communication functions of a telecommunications or computing system without regard to its internal structure and technology. It has seven layers—application, presentation, session, transport, network, data link, and physical; these are layers seven, down to layer one.
  3. The TCP/IP protocol is the only protocol used in the internet, and most networks use it; each computer has an IP address to identify it.
  4. A switch operates ...

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