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: - The core definition of cloud computing, including on-demand delivery and pay-as-you-go pricing. - Key differences between IaaS, PaaS, and SaaS and how the shared responsibility model applies to each. - How to distinguish between public, private, and hybrid cloud deployment models and their common use cases. - The structure of the AWS global infrastructure, specifically the relationship between Regions and Availability Zones (AZs). - Why deploying resources across multiple Availability Zones is essential for achieving high availability and fault tolerance. 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