The Open Systems Interconnection (OSI) model

  The Open Systems Interconnection (OSI) model is a guiding principle in online system design. By working from the OSI model, you could ensure that your employer’s online environment could accommodate interoperability among different online software products and services. > Draw a chart for the OSI model and their numbers from top to bottom. > Name three problems with cabling and the methods to counteract those issues. > How do you protect your employer’s domain name from being hijacked?