You are asking a "loaded" question. Sure the 2960S/2960X and 3850 can terminate fibre optic. It all depends on how you want it.
Both the 2960S/2960X and the 3850 can be stacked. When we say "stacked" it means that the each switch models can be connected (at the back using a special stacking cable) to form a single logical switch.
Each 2960S can support a minimum of two SFP/SFP+ or up to four SFP. The 3850, however, can support up to four SFP/SFP+ fibre. This is on a single unit.
Before I continue droning on, what EXACTLY are you trying to do and achieve?
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...