[PL-300] 4, Connecting to Files, Databases, and Semantic Models

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 choose between single file connectors and the Folder connector for combining scheduled data drops. - How native SQL queries in relational database connections impact Power Query query folding. - Key differences between Import mode, DirectQuery mode, and Live Connections for performance and features. - How Privacy Levels prevent data leakage and resolve Formula Firewall errors during multi-source queries. - How to extend shared Power BI semantic models using composite models and DirectQuery. 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