What is a key advantage of RFoG in transitioning from legacy HFC architecture to PON?

The choice indicating that RFoG operates parallel to GPON and EPON highlights a significant advantage in transitioning from legacy HFC architecture to PON. This parallel operation allows existing HFC infrastructures to be utilized while enabling the integration of PON technologies concurrently.

Being able to run alongside GPON and EPON means that service providers can implement advanced PON solutions without the immediate need to completely overhaul their existing systems. This capability facilitates a smoother transition, allowing for hybrid setups where both RFoG and PON can operate simultaneously, helping to maintain service continuity and improve resource allocation during the migration process.

The other options do not correctly highlight this aspect of RFoG's functionality. For instance, claiming that it requires no new equipment overlooks the fact that while RFoG can use existing infrastructure, some new equipment is often necessary for compatibility with PON standards. Saying that it increases network latency would misrepresent RFoG's efficiency and bandwidth utilization; typically, this technology is designed to minimize latency. Lastly, suggesting that it reduces the need for fiber contradicts the goal of PON architectures, which usually aim to enhance fiber capabilities, not diminish them.