Snowflake Certification Practice Test

Which among the following is not a best practice for loading data?

1. Splitting large files increases performance

2. Setting load files to an optimal size

3. Using compressed files for loading

4. Submitting all files as one large file

The correct answer is: Submitting all files as one large file

Submitting all files as one large file is not considered a best practice for loading data in Snowflake. This approach can lead to performance bottlenecks and inefficient resource utilization. When using a single large file, the loading process can become slower due to the increased time it takes to parse the file and handle potential errors. In contrast, splitting large files can enhance performance by allowing Snowflake to process multiple smaller files simultaneously, benefiting from parallel processing. Setting load files to an optimal size helps to balance the workload and enhances efficiency. Utilizing compressed files can also lead to faster data loading, as they reduce the amount of data that needs to be transferred and can be processed more quickly by Snowflake. By following these best practices, users can achieve more efficient loading operations and better overall performance.