The latest articles on DEV Community by Mahmoud (@mahmoud_ced0dfeebbc55e671). https://dev.to/mahmoud_ced0dfeebbc55e671 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F4086676%2F4729cc88-0412-4052-a825-ef6106efdeda.jpg https://dev.to/mahmoud_ced0dfeebbc55e671 en Mahmoud Sun, 23 Aug 2026 15:41:22 +0000 https://dev.to/mahmoud_ced0dfeebbc55e671/3-cloud-myths-i-believed-before-passing-az-900-1o6p https://dev.to/mahmoud_ced0dfeebbc55e671/3-cloud-myths-i-believed-before-passing-az-900-1o6p <p>Cloud computing can sound like magic—until you ask three practical questions:</p> <p>Who owns the hardware?<br> Who manages it?<br> And who pays when resources sit idle?</p> <p>While preparing for AZ-900, I realized that several assumptions I had about the cloud were incomplete.</p> <h2> Myth 1: The cloud is always cheaper </h2> <p>The cloud can reduce upfront infrastructure costs, but savings are not automatic.</p> <p>Idle resources, incorrect sizing, and poor planning can quickly increase the bill.</p> <p>The real lesson?</p> <p><strong>Cloud savings must be designed.</strong></p> <h2> Myth 2: The cloud means there are no servers </h2> <p>Servers did not disappear.</p> <p>They still exist inside physical data centers. The difference is that the cloud provider manages more of the underlying infrastructure depending on whether you choose IaaS, PaaS, or SaaS.</p> <p><strong>The cloud changes who manages what.</strong></p> <h2> Myth 3: More control is always better </h2> <p>More control may sound attractive, but it also brings more responsibility:</p> <ul> <li>Patching</li> <li>Monitoring</li> <li>Security decisions</li> <li>Maintenance</li> <li>Configuration</li> </ul> <p>Sometimes the smartest technical decision is choosing a managed service and focusing on the application instead of the infrastructure.</p> <h2> My biggest takeaway </h2> <p>The cloud is not automatically cheaper, simpler, or better.</p> <p>It is a collection of trade-offs between:</p> <p><strong>Cost, control, responsibility, and speed.</strong></p> <p>Microsoft Learn provides a free official path for anyone who wants to explore these concepts:</p> <p>👉 <a href="https://learn.microsoft.com/en-us/training/courses/az-900t00?wt.mc_id=studentamb_615882" rel="noopener noreferrer">Explore the official AZ-900 course on Microsoft Learn</a></p> <p>Which cloud myth did you believe when you first started learning?</p> learning beginners azure cloud