Compared with GPON, XGS-PON can cover more users and provide higher bandwidth without changing the...

GPON vs. XGS-PON :

GPON : Provides asymmetric bandwidth (2.5 Gbps downstream, 1.25 Gbps upstream) and supports up to 128 ONUs per PON port.

XGS-PON : Provides symmetric bandwidth (10 Gbps upstream and downstream) and supports up to 256 ONUs per PON port.

ODN Compatibility :

XGS-PON operates over the same ODN (Optical Distribution Network) as GPON, meaning no changes are required to the existing fiber infrastructure.

XGS-PON uses different wavelengths (1577 nm downstream, 1270 nm upstream) to coexist with GPON on the same ODN using wavelength division multiplexing (WDM).

Why TRUE?

XGS-PON supports higher bandwidth and more users while maintaining compatibility with the existing GPON ODN architecture.

Thus, the correct answer is A .

References:

HCIA Huawei ACCESS Official Documentation , Chapter: GPON vs. XGS-PON.

ITU-T G.9807.1 Standards for XGS-PON .