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Microsoft 🇺🇸 · 8 min read

AZ-305 Deep Dive: Infrastructure Solutions and Data Storage Design (Domains 4 & 2)

A technical deep dive into AZ-305 Domains 4 and 2: the 4-way load balancing decision, Azure Virtual WAN, ExpressRoute vs VPN, AKS vs Container Apps, Service Bus vs Event Grid vs Event Hubs, SQL DB vs SQL MI vs SQL on VM, Cosmos DB consistency levels, and more.

Domains 4 and 2 of the AZ-305 Designing Microsoft Azure Infrastructure Solutions exam carry the heaviest combined weight: 50-60% of all exam questions. Domain 4 (Infrastructure) alone accounts for 30-35% -- the single largest domain on the exam.

This deep dive covers every critical decision framework in both domains. These are not feature summaries -- they are …

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