Single-mode fiber can be identified visually as it is typically _________ color.
Answer Description
Single-mode fiber, per TIA-598C standards should be yellow for easy identification.
Wikipedia
Multi-mode optical fiber is a type of optical fiber mostly used for communication over short distances, such as within a building or on a campus. Typical multi-mode links have data rates of 10 Mbit/s to 10 Gbit/s over link lengths of up to 600 meters (2000 feet). Multi-mode fiber has a fairly large core diameter that enables multiple light modes to be propagated and limits the maximum length of a transmission link because of modal …
Multi-mode optical fiber - Wikipedia, the free encyclopedia