The biggest advantage of optical fiber is the fact it is the most cost effective means of transporting information.

• A. True
• B. False
• C. Not sure
• D. Depends on application

Answer: (A)

The main idea here is cost effectiveness for moving information over networks. Optical fiber shines because it allows very high data rates to be sent over long distances with very low signal loss. That means fewer repeaters, lower maintenance, and less shielding and powering of equipment, which translates into a lower cost per bit transported over time. In backbone and data-center applications, these savings add up, so fiber often ends up delivering the lowest total cost of ownership for moving large amounts of information.

Keep in mind that for short links or simple, low-rate connections, the upfront costs of fiber installation can be higher, so it isn’t universally cheapest in every situation. But when the goal is transporting a lot of data over long distances, the overall cost advantage of fiber becomes the strongest factor.