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Podcast Episode

[PL-300] 5, Data Source Settings, Credentials, and Privacy Levels

Tech Exam Prep··12 September 2026·4 min

About this episode

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to configure data source settings, file paths, and authentication methods for PL-300 scenario questions. - How to troubleshoot credential updates and dataset refresh failures between Power BI Desktop and Service. - The four privacy levels and how the Formula Firewall prevents unauthorized data exposure during query folding. - How interactions between Private, Organizational, and Public data sources trigger or resolve refresh errors. - Key strategies to fix Formula Firewall issues on gateways and datasets to pass certification questions. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep