Home/ cloud-computing/ Azure Solutions Architect Expert/ Cheat Sheet
Azure Solutions Architect Expert· Exam reference card · 2026 · Edureify AI
Azure Solutions Architect Expert

Azure Solutions Architect Expert Cheat Sheet

AZ-305 Tests Enterprise Azure Architecture Decisions — Not Individual Service Configuration

The expert exam requires synthesizing Azure services into architectures that meet complex, conflicting business requirements. Integration patterns and governance at scale dominate.

Check Your Readiness →
Among the harder certs
Avg: Approximately 60–65%
Pass: 750 / 1000
Most candidates understand Azure Solutions Architect Expert concepts — and still fail. This exam tests how you apply knowledge under pressure.
Core Framework

AZ-305 Architecture Decision Framework

AZ-305 builds on AZ-104 and AZ-204. Scenarios present complex enterprise requirements and test whether you can design architectures that balance security, reliability, performance, cost, and operational complexity simultaneously.

  1. 01
    Identity & Access Architecture — Hybrid identity, external identities, B2B/B2C patterns
  2. 02
    Business Continuity — RTO/RPO-driven HA/DR architecture, backup strategies
  3. 03
    Infrastructure — Compute, networking, storage architecture for enterprise workloads
  4. 04
    Application Architecture — Microservices, API integration, event-driven patterns
  5. 05
    Data Architecture — Relational, NoSQL, analytics, data governance at scale
Scenario Traps

Wrong instinct vs correct approach

An enterprise needs sub-millisecond data access globally for a critical application
✕ Wrong instinct

Deploy Azure SQL with read replicas in each region

✓ Correct approach

Azure Cosmos DB with multi-region writes provides global distribution with sub-millisecond access; Azure SQL read replicas have replication latency and can't serve sub-millisecond global requirements

A multi-national company needs data residency compliance per country
✕ Wrong instinct

Deploy a single global Azure environment and manage compliance programmatically

✓ Correct approach

Implement separate Azure subscriptions per regulatory region, enforce data residency with Azure Policy, and use Azure Sovereign Clouds where required — data residency is a hard architectural constraint

A company wants to modernize a monolithic application with minimal disruption
✕ Wrong instinct

Refactor the entire application to microservices immediately

✓ Correct approach

Apply the Strangler Fig pattern — incrementally extract services from the monolith while keeping the core system operational; a complete immediate rewrite is high-risk and rarely necessary

Quick Rules

Know these cold

  • ▸ Enterprise architecture = trade-offs, not maximizing every dimension independently
  • ▸ HA prevents downtime during component failures; DR recovers after regional disasters
  • ▸ Hybrid identity — ntra ID Connect for on-premises AD sync; ExpressRoute for private hybrid networking
  • ▸ Cosmos DB for global distribution and sub-millisecond access; Azure SQL for regional relational
  • ▸ Management Groups + Azure Policy + RBAC = enterprise governance foundation
  • ▸ Strangler Fig pattern for incremental application modernization — avoid big-bang rewrites
  • ▸ Cost management is an architectural concern — right-size from design, don't optimize after deployment
Self Check

Can you answer these without checking your notes?

In this scenario: "An enterprise needs sub-millisecond data access globally for a critical application" — what should you do first?
Azure Cosmos DB with multi-region writes provides global distribution with sub-millisecond access; Azure SQL read replicas have replication latency and can't serve sub-millisecond global requirements
In this scenario: "A multi-national company needs data residency compliance per country" — what should you do first?
Implement separate Azure subscriptions per regulatory region, enforce data residency with Azure Policy, and use Azure Sovereign Clouds where required — data residency is a hard architectural constraint
In this scenario: "A company wants to modernize a monolithic application with minimal disruption" — what should you do first?
Apply the Strangler Fig pattern — incrementally extract services from the monolith while keeping the core system operational; a complete immediate rewrite is high-risk and rarely necessary
Failure Patterns

Common Exam Mistakes — What candidates get wrong

Designing for individual requirements without considering trade-offs

Enterprise architecture involves trade-offs — high availability costs more; tighter security reduces usability. AZ-305 tests whether you resolve these conflicts, not just maximize each dimension independently.

Recommending premium services when standard services meet requirements

AZ-305 rewards architecturally appropriate choices. Azure Cosmos DB is powerful but expensive — Azure SQL is sufficient for many relational scenarios. Recommending premium services without justification is a common overthinking error.

Ignoring hybrid identity and on-premises integration

Enterprise scenarios frequently involve hybrid environments. Candidates who design cloud-only solutions without considering Entra ID Connect, ExpressRoute, and on-premises data residency miss enterprise architecture questions.

Misidentifying HA vs. DR architecture components

HA keeps the application running during component failures (Azure Load Balancer, Availability Zones, autoscale). DR recovers after a regional disaster (Azure Site Recovery, geo-redundant storage, Traffic Manager). Different architectural elements.

Overlooking governance and policy requirements

Enterprise architectures require Azure Policy, Management Groups, RBAC, and cost management from the start — not as an afterthought. Candidates who design infrastructure without governance structures fail enterprise architecture questions.

AZ-305 tests enterprise Azure architecture synthesis. Test whether you can design for complex, conflicting requirements.

Start Diagnostic Test → View all exams