Network support specialists investigate, test, troubleshoot, and evaluate present network systems, such as local area network (LAN), wide area network (WAN), and internet with a wide ranged network system.
Technical writers develop product manuals, how-to guides, website help sections, journal articles, and other content that distills technical information.
Support specialist level 2–3 provide information on services, products, and materials offered by a company, along with a variety of responsibilities serving customers' needs.
Level 1 tech support is typically a customer service role set in a retail or call center environment, helping the customer troubleshoot software and hardware issues. OJT typically provides the required technical knowledge.