What differentiates fiber-to-the-node (FTTN) from fiber-to-the-curb (FTTC) topologies?

Fiber-to-the-curb (FTTC) and fiber-to-the-node (FTTN) are two different types of fiber optic network topologies that influence how data is delivered to end users. The correct answer highlights a key aspect of FTTC's installation approach regarding the use of RF amplification.

In FTTC implementations, the fiber optic cable extends to a point closer to the customer, typically to a curbside cabinet that serves several homes or businesses within a short distance, usually just a few hundred meters. Because of this proximity, there is less need for extensive RF amplification. The reduced distance means that signals can be transmitted more efficiently without the degradation that longer distances might introduce, thereby requiring fewer RF amplifiers.

The distinction is significant because FTTN, in contrast, serves a larger geographical area from a central node, which can be further away from the customers. Due to this longer distance and the need to maintain signal integrity over that distance, FTTN installations usually necessitate additional RF amplifiers to boost the signal strength before it reaches the end users.

Understanding these differences assists in evaluating the efficiency and performance of fiber optic networks, helping to determine the most suitable topology for specific deployment scenarios. This also illustrates why option C is the most accurate representation of