Study Azure AZ-305 Infrastructure: key concepts, common traps, and exam decision cues.
This chapter is the largest part of AZ-305 because it pulls multiple architecture lanes together: runtime platform choice, application integration, migration path, private connectivity, routing, and edge entry design. Strong answers here start by placing the workload at the right level of management, then shaping the application and network around that choice.
Microsoft currently weights this skill area at 30-35% of the exam.
| Lesson | Focus |
|---|---|
| 4.1 Compute Service Fit for Workloads | Learn when the answer is VMs, App Service, containers, Functions, or another managed compute pattern. |
| 4.2 Application Architecture, Messaging and Configuration | Learn how APIs, async messaging, events, and centralized configuration shape the app design. |
| 4.3 Migration Strategy for Apps, Data and Platforms | Learn how to choose rehost, refactor, or modernize paths based on risk and operating goals. |
| 4.4 Network Connectivity, Security and Routing | Learn how private access, hybrid links, DNS, and traffic-entry services fit together. |
| If the question is really about… | Go first to… |
|---|---|
| runtime platform choice, scaling model, or operational burden | 4.1 Compute Service Fit for Workloads |
| decoupling services, event flow, or centralized config and API exposure | 4.2 Application Architecture, Messaging and Configuration |
| moving current apps and databases into Azure with the least risk or best modernization fit | 4.3 Migration Strategy for Apps, Data and Platforms |
| private endpoints, hybrid links, DNS, edge routing, or network inspection | 4.4 Network Connectivity, Security and Routing |