Tech Exam Prep

Tech Exam Prep is a free, daily podcast by OpenExamPrep covering the most in-demand IT and technology certification exams — including CompTIA Security+, AWS Cloud Practitioner, CompTIA Network+, CCNA, CompTIA A+, and more. Each 5-minute episode breaks down one exam topic with concrete examples, common exam traps, and memory tricks to help you pass on your first attempt. No fluff, no filler — just the concepts you need to know, explained the way the exam tests them. 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 for everyone. For free practice questions, AI-powered explanations, flashcards, and full study guides, visit https://open-exam-prep.com/ Subscribe and listen daily — your certification is closer than you think.

Tech Exam Prep is a education podcast hosted by Ran Chen, EA, CFP®, with 194 episodes on record and a Required Pod Score of 81.

Ran Chen, EA, CFP® hosts Tech Exam Prep, a education show with 194 episodes published.

Our AI reads these to draft pitches. Use them as grounding for a pitch that cites a real guest and a specific topic.

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  Tech Exam Prep

  [PL-300] 36, Themes and Conditional Formatting

  Oct 4, 20264 min

  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 report themes establish global design consistency across Power BI reports using built-in presets and custom JSON files. - How to apply gradient, rule-based, and field-value conditional formatting to background colors, font colors, icons, and data bars. - How to avoid the common exam trap of confusing percentage vs number settings in rule-based conditional formatting. - How to use DAX measures returning hex color codes paired with field value conditional formatting for dynamic visual logic. - How to distinguish report-level theme architecture from measure-driven conditional emphasis on the PL-300 exam. 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

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  Tech Exam Prep

  [PL-300] 35, Formatting and Configuring Visuals

  Oct 3, 20264 min

  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 implicit field aggregations differ from explicit DAX measures in visual configurations - Techniques for optimizing axis limits, legend visibility, and layout readability to prevent clutter - How to use small multiples for synchronized side-by-side categorical comparisons - Adding dynamic Analytics pane reference lines such as constant and average benchmarks - Configuring matrix totals and applying measure-driven conditional formatting and dynamic titles 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

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  Tech Exam Prep

  [PL-300] 34, Choosing the Right Power BI Visual

  Oct 2, 20264 min

  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 match core business requirements like trends, correlation, composition, and distribution to specific Power BI visuals for the PL-300 exam. - The distinction between line charts for continuous time series, bar charts for discrete categories, and scatter charts for numerical correlation. - Best practices for part-to-whole analysis, including category limits on pie charts, benefits of treemaps, and when to choose stacked bar charts. - Key exam scenarios for specialized visuals including Decomposition Trees, KPI visuals, Gauges, Matrices, and Geographic maps. - Major exam traps regarding custom visuals, misleading chart choices, and selecting built-in options to fulfill requirements efficiently. 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

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  Tech Exam Prep

  [PL-300] 33, Optimizing Model and DAX Performance

  Oct 1, 20263 min

  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 removing unnecessary rows and columns improves VertiPaq columnar compression in PL-300 - Techniques for reducing granularity and high cardinality, such as splitting datetime columns - Why star schemas with single-direction relationships perform best on the exam compared to bi-directional options - How to use Performance Analyzer to isolate bottlenecks between DAX query, Visual display, and Other metrics - Methods for diagnosing and rewriting slow measures using DAX Query View to eliminate costly iterators 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

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  Tech Exam Prep

  [PL-300] 32, Semi-Additive Measures, Quick Measures, and Calculation Groups

  Sep 30, 20263 min

  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 semi-additive measures aggregate across spatial dimensions but require last-nonblank patterns over time. - How to apply LASTNONBLANKVALUE logic to prevent incorrect summing of inventory or account balances. - The operational limits of quick measures and when explicit DAX measures are required for complex logic. - How calculation groups use the SELECTEDMEASURE function to apply dynamic logic across multiple metrics. - Criteria for choosing between reusable calculation groups and standalone explicit measures in Power BI models. 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

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Based on semantic analysis of episode topics and host coverage, this show is a strong guest fit for executives in:

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