"Replicated" gets used loosely in cloud marketing, so here's what it means on Data Moose specifically: every object you upload is written to at least two physically separate servers before the write is confirmed back to you.
If one of those servers has a hardware failure, your data is still fully intact on the other, and a new replica is created automatically to restore redundancy.
This runs the same way regardless of plan size — there's no tier where redundancy is optional.