Which of the following statements about optical fiber splicing is TRUE?

The statement regarding optical splices requiring proper hold in splice trays is true because maintaining stability and security of the fiber connections is crucial for optimal performance. When splices are properly secured in splice trays, it prevents any movement or strain on the fibers which could lead to signal loss or damage. Splice trays are designed to hold the fibers in place while protecting them from external factors like dust and physical disturbances, thereby ensuring the integrity of the splices over time.

In contrast, leaving buffer tubes unsecured could potentially lead to fiber damage, and cleaning tools after splicing is not optional; clean fibers are essential for minimizing loss. Furthermore, splice trays should have protective features to guard against environmental hazards, making the idea that they do not require these features inaccurate.