Which of the following is an example of an operation that can be completed without requiring compute, assuming no queries have been executed previously?

Which account__usage views are used to evaluate the details of dynamic data masking? (Select TWO)

Snowflake supports the use of external stages with which cloud platforms? (Choose three.)

A user has 10 files in a stage containing new customer dat
a. The ingest operation completes with no errors, using the following command:
COPY INTO my__table FROM @my__stage;
The next day the user adds 10 files to the stage so that now the stage contains a mixture of new customer data and updates to the previous data. The user did not remove the 10 original files.
If the user runs the same copy into command what will happen?

A user is preparing to load data from an external stage
Which practice will provide the MOST efficient loading performance?