So this is one of the questions in the Chapter 3 quizes. Can we please stop with the double negatives? I had hoped in the last couple of years someone had been through the university documentation and cleaned it up.
There is no way to ensure that duplicate records are not stored in MongoDB?
Is it possible to stop duplicate records being stored in MongoDB using Schema Validation?
Okay. It isn’t clear that the original question is referring to schema validation, that should be implied in the question, especially if you want someone to read it if to answer the question. Also how about in the answer, showing how it would be done. I read the associated documents and it wasn’t clear.