200-301: Cisco Certified Network AssociateDemo

Multimode fiber supports multiple light paths, so modal dispersion increases with distance; this makes it better suited for short runs such as internal datacenter links and more prone to distortion over longer lengths. Single-mode fiber carries a single light mode/path, which greatly reduces dispersion and internal reflection effects, making it the better match for a single wavelength/path description and minimal light reflection as the signal travels through the core.