What are the two supported upstream data rates for the 10G-EPON access architecture?

The correct choice specifies that the supported upstream data rates for the 10G-EPON access architecture are 1 Gbps and 10 Gbps. This architecture is designed for high-speed applications in fiber-to-the-home (FTTH) scenarios, and it enhances the performance of existing Ethernet passive optical networks (EPON).

In the 10G-EPON framework, the upstream data rates leverage the benefits of higher bandwidth capabilities, allowing for a more efficient use of the optical fiber. The 10G refers to the maximum speed provided, which is 10 Gbps, and supports backward compatibility with 1 Gbps rates. This dual-rate capability enables service providers to offer a range of services based on customer needs, ensuring flexibility and scalability.

The other choices do not align with the specifications of the 10G-EPON technology, as they either exceed the typical maximum or do not meet the needed data rates for efficient broadband services. Understanding these supported rates is crucial for designing and implementing networks that successfully meet user demands in contemporary broadband environments.