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Azure Architect AZ-305 Study Guide 2026: Design Deep Dive

🌟 Featured Pillar Guide: 2026 Edition
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As enterprises consolidate their AI workloads on Azure, mastering the balance between governance and agility is paramount. This 5,000-word guide maps out the 2026 certification landscape, focusing on the critical leap from Administrator to Solutions Architect.

👉 Azure Certification Path 2026: Mastering AZ-104 & AZ-305

The Microsoft Azure Solutions Architect Expert (AZ-305) is where cloud theory meets enterprise reality. It is no longer enough to know how to click through the portal; you must now justify why one solution is superior to another under specific business constraints.

Drawing from my 21+ years as a CTO, I have curated these AZ-305 Drills to focus on the Design Logic. We move beyond administration into the realm of ‘Architecture-as-a-Strategy’, ensuring that every Azure deployment at Stonehenge EdTech is both resilient and fiscally responsible.

🗺️ AZ-305 Design Matrix (Expert Domains)
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I have organized my 10+ professional-grade analyses into the four critical design pillars of the AZ-305 exam. Each drill is a deep-dive into an architectural crossroad.

🆔 Domain 1: Design Identity, Governance, and Monitoring (25-30%)
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A robust architecture starts with a secure foundation. This domain covers the design of management groups, subscriptions, and resource groups. I analyze complex identity solutions involving Microsoft Entra ID B2B/B2C, conditional access policies, and centralized monitoring strategies using Azure Monitor and Sentinel. The goal is to design a governance framework that scales with the organization.

đź”’ Domain 2: Design Data Storage Solutions (25-30%)
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Data is the lifeblood of any application. Here, we evaluate the trade-offs between SQL, NoSQL (Cosmos DB), and Data Lake solutions. My drills focus on designing for data consistency, availability, and durability. We analyze when to use SQL Managed Instance versus Azure SQL Database, and how to design storage encryption and access patterns that satisfy global compliance standards.

🛡️ Domain 3: Design Business Continuity Solutions (10-15%)
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High availability is a requirement, not a feature. This domain focuses on designing for “worst-case scenarios.” I break down Backup and Disaster Recovery (DR) strategies using Azure Site Recovery (ASR), and how to design architectures that meet stringent RTO and RPO requirements. We explore multi-region failover patterns and the cost implications of various redundancy levels (LRS/GRS/ZRS).

⚙️ Domain 4: Design Infrastructure Solutions (25-30%)
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This is the core of architectural orchestration. We design compute solutions using VMs, Containers (AKS), and Serverless (Azure Functions). A significant focus is placed on Network Design—architecting hub-and-spoke topologies, integrating Azure Front Door for global load balancing, and securing hybrid connectivity with ExpressRoute. I analyze how to minimize latency while maximizing network security.

💎 The Architect’s Edge: Strategic Trade-offs
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On this platform, we focus on the Expert-level Decision Matrix:

  • Migration Strategy: Choosing between Rehost, Replatform, and Refactor based on TCO.
  • Cost Optimization: Designing architectures that leverage Reserved Instances and Spot VMs without sacrificing uptime.
  • Operational Excellence: Moving from manual infrastructure to Infrastructure as Code (IaC) using Bicep and Terraform.

👇 All AZ-305 Expert Design Drills (Recent First)
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