Justify those certificates

It's Ok to not put a certification or a course completion proof on your Resume, but If you have evidence, you must be ready to prove that you have acquired them.

For eg: if you say that you completed The Google Cloud Certification on Coursera but don't know what a compute engine, BigQueury or BigTable is, then you are not sincere and you come of as someone who is just concerned about points on a paper instead of learning skill acquisition