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Microsoft Microsoft Azure Fundamentals Blog

Expert articles and study guides for the AZ-900 certification.

Comparison 7 min read

Azure Data Lake vs Blob Storage: AZ-900 Explained

Azure Blob Storage is object storage for unstructured data using a flat namespace. Azure Data Lake Storage Gen2 builds on Blob storage by adding a hierarchical namespace, making it optimized for big data analytics and high-performance Hadoop workloads. For AZ-900, choose Data Lake when you see "hierarchical" or "analytics."

Cert Sensei Team · 2026-08-10
Deep Dive 8 min read

What is an Azure Resource Group? AZ-900 Governance Guide

An Azure Resource Group is a logical container that holds related resources for an Azure solution. It enables efficient lifecycle management, allowing you to deploy, update, and delete a group of resources as a single unit, while providing a centralized point for applying governance, security policies, and Role-Based Access Control (RBAC).

Cert Sensei Team · 2026-06-23
Study Guide 10 min read

Azure Fundamentals (AZ-900): How to Pass on Your First Try

To pass the Azure AZ-900 exam, focus on the three core domains: Cloud Concepts, Azure Architecture, and Management and Governance. Combine Microsoft Learn's free modules with high-volume practice exams—like the 1,000 questions at Cert Sensei—to master service distinctions and governance tools. Aim for a 700/1000 score across 40-60 questions.

Cert Sensei Team · 2026-06-07

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