During a large-scale ETL project, you need to select a testing method that is both time-efficient and reliable. Which method would you choose and why?

  • Incremental Testing
  • Parallel Testing
  • Regression Testing
  • Sampling Testing
Parallel Testing would be the preferred method in a large-scale ETL project because it allows for simultaneous testing of multiple components or processes. This approach can significantly reduce testing time while ensuring reliability by validating various aspects concurrently.
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