Build the technical and customer service knowledge used to support high-speed broadband connections. The Master High-Speed Data Representative certificate combines network fundamentals and service delivery with customer care and both introductory and advanced high-speed data support. Explore DOCSIS modem operation, return-path performance, PCs, mobile devices, operating systems, and structured troubleshooting. This NCTI credential connects knowledge of the broadband connection with an understanding of customer equipment and the skills used to assist the people relying on it.