Certified Fiber Optics Practice Exam

The correct answer focuses on outside cables, which are specifically designed to meet the safety and environmental requirements of installations in building environments. These cables can typically carry outdoor rating, meaning they can withstand exposure to moisture, UV light, and temperature variances that occur outside. When installed indoors, outside cables must adhere to certain length restrictions, such as the 50 ft limit, to ensure compliance with building codes and safety standards. This restriction helps to minimize the risk of potential fire hazards or interference resulting from using cables not designed for indoor use over longer distances. In contrast, indoor cables provide an alternative for shorter runs within a building, while underground cables and specialized cables may have specific applications or requirements that don't align with the general practice of allowing outside cables inside a building.