Build the knowledge to connect fiber-optic network fundamentals with installation, maintenance, and restoration. This NCTI certification combines study in optical signal technology, tools, testing, splicing, and architectures with safety and residential installation. Maintenance coursework adds outside plant troubleshooting, OTDR configuration and analysis, acceptance testing, and restoration planning. Explore how documentation, fault diagnosis, equipment preparation, and coordinated response support the work of maintaining and restoring fiber-optic service.