I have a question from my Microsoft Practice Exam that I got while purchasing my exam date. Here is the question and answer:

The explanation does not give a whole lot either:

With the references as follows:

https://docs.databricks.com/en/connect/storage/azure-storage.html

Does anyone understand why I would need to mount a filesystem using a service principle if I just wanna read from an ADLS Gen2 account? I assume they mean the DBFS (Databrincwith this so not sure why we would need to do that. Also isn’t the RDD API just the normal spark API which we have to use?