The data services company you work for has decided to become an ISP and supply high-capacity Internet connections from its data center. Currently, the data center relies on a 100Base-FX backbone, but your boss demands that the backbone be upgraded to 10GBase-LR. What kind of infrastructure changes would this require? a. None, because fiber-optic cabling and connectivity devices, including multiplexers, are already in place.
b. The fiber-optic cabling will need to be upgraded, but the same connectivity devices and multiplexers can be used.
c. The fiber-optic cabling can be reused, but the connectivity devices and multiplexers must be replaced.
d. The fiber-optic cabling, connectivity devices, and multiplexers must be replaced.