As enterprises become more and more dependent on their network infrastructure to support their business, the cost of network downtime has increased. When employees cannot perform their jobs due to network problems, the company loses productivity, and therefore, revenue. Network troubleshooting is an essential task that a network engineer needs to be capable of performing. The more efficiently and effectively problems can be diagnosed and resolved, the lower the impact will be to the business. In complex environments, troubleshooting can be a daunting task, and the only way to diagnose and resolve problems quickly and effectively is by following a structured approach. This approach involves having well-defined and documented troubleshooting procedures and aligning troubleshooting procedures to general network maintenance procedures. In this course, the benefits of a structured approach to troubleshooting are evaluated and the leading principles that are at the core of all troubleshooting methodologies are identified. Common approaches to network and generic troubleshooting processes and their relation to network maintenance processes are also discussed.

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