- AZ-305 has four domains; Design infrastructure solutions carries the heaviest weight at 30-35%.
- US exam pricing is typically $165 plus tax, delivered via Pearson VUE, in-person or online.
- Passing score is 700+, and you must already hold Azure Administrator Associate to earn the Expert title.
- Role-based exams give 100 minutes of testing time and 120 minutes total seat time.
What the AZ-305 Certification Actually Covers
The Microsoft Certified: Azure Solutions Architect Expert credential is earned by passing Exam AZ-305: Designing Microsoft Azure Infrastructure Solutions, governed by Microsoft Corporation and delivered through Pearson VUE test centers or online proctoring. Unlike associate-level exams that test hands-on administration skills, AZ-305 tests your ability to make architectural decisions - choosing compute services, designing network topologies, selecting storage tiers, and justifying tradeoffs across cost, performance, security, and availability.
If you're still deciding whether this credential fits your career path, start with What Is AZ-305? or the broader breakdown at AZ-305 Meaning. This article assumes you already know the basics and want the specifics: domain weighting, exam mechanics, and what separates AZ-305 from a generic cloud exam.
The Four AZ-305 Domains Explained
Microsoft organizes AZ-305 into four scored domains. Understanding the exact weighting tells you where to invest study hours - a candidate who spends equal time on all four is almost certainly under-preparing for the largest domain.
Domain 4: Design infrastructure solutions (30-35%)
The largest domain by a meaningful margin. It covers compute solutions (VMs, App Service, AKS, Azure Functions), application architecture patterns (event-driven, microservices, messaging), network design (hub-and-spoke, VNet peering, private endpoints), and migration planning between on-premises and Azure.
- Compare compute options against workload requirements (stateless vs. stateful, containerized vs. serverless)
- Design hybrid and multi-region network topologies
- Plan migrations using Azure Migrate and related tooling
Domain 1: Design identity, governance, and monitoring solutions (25-30%)
The second-largest domain. Expect scenarios on Azure AD (Entra ID), RBAC vs. Azure Policy, management group hierarchies, and monitoring strategies using Azure Monitor and Log Analytics.
- Design authentication and authorization for multi-tenant scenarios
- Structure management groups, subscriptions, and policy assignments for governance at scale
- Choose monitoring and alerting solutions for distributed systems
Domain 2: Design data storage solutions (20-25%)
This domain tests your ability to match data workloads to the right storage service - relational, non-relational, or big data - and to design for consistency, redundancy, and access patterns.
- Select between Azure SQL, Cosmos DB, and storage account tiers based on workload
- Design data redundancy and replication strategies (LRS, ZRS, GRS)
- Plan for data integration and analytics pipelines
Domain 3: Design business continuity solutions (15-20%)
The smallest domain but still frequently tested through scenario questions on backup, disaster recovery, and high availability.
- Design backup strategies using Azure Backup and geo-redundant storage
- Plan disaster recovery with Azure Site Recovery
- Architect for high availability across availability zones and regions
For a full breakdown of each domain with study resources, see the AZ-305 Exam Domains 2026: Complete Guide to All 4 Content Areas, or drill into individual domains: Domain 1: identity, governance, and monitoring, Domain 2: data storage solutions, Domain 3: business continuity solutions, and Domain 4: infrastructure solutions.
Exam Format, Fees, and Registration Mechanics
AZ-305 is registered and scheduled through Pearson VUE, with the option of an in-person test center or online proctoring from home. Pricing is set per country or region; in the United States, Associate and Expert-level exams typically run $165 USD plus applicable taxes. Microsoft does not publish a member/non-member pricing split for this exam.
Microsoft states that most certification exams contain roughly 40-60 questions, though the exact count varies by exam and by update cycle. As a role-based exam without labs, AZ-305 provides 100 minutes of exam time within 120 minutes of total seat time (the extra minutes cover the NDA agreement and a post-exam survey). Microsoft does not confirm in advance whether a given exam session includes labs, so budget time carefully regardless.
Question formats pulled from Microsoft's documented exam sandbox include active screen, build list, case study, drag-and-drop, hot area, and multiple choice, with the possibility of labs. During associate and expert-level exams, Microsoft Learn reference content is accessible within the Learn domain while the clock keeps running - useful, but not a substitute for knowing the material.
A passing score is 700 or higher on Microsoft's scaled scoring system. Microsoft does not publicly disclose pass rates, so treat any specific percentage you see elsewhere with skepticism - for a data-grounded discussion of what's actually known, read AZ-305 Pass Rate 2026: What the Data Shows. For the full cost picture including retakes and renewal, see AZ-305 Certification Cost 2026: Complete Pricing Breakdown.
Key Takeaway
Because Microsoft doesn't disclose which sessions include labs or the exact question count, prepare for scenario-heavy case studies rather than memorizing a fixed exam blueprint.
Prerequisites and Who Should Take AZ-305
To earn the Azure Solutions Architect Expert title, you must pass AZ-305 and already hold the Microsoft Certified: Azure Administrator Associate certification. This isn't optional - Microsoft explicitly requires it as a prerequisite. If you haven't earned AZ-104 yet, plan that path first.
Beyond the formal prerequisite, Microsoft expects candidates to bring advanced knowledge across Azure administration, networking, virtualization, identity, security, business continuity and disaster recovery, data platform concepts, governance, development, and DevOps practices. This is not an entry-level exam disguised as an intermediate one - it assumes you've already worked hands-on in Azure environments.
Curious how this stacks up against other credentials or whether the investment makes sense for your role? See Is the AZ-305 Certification Worth It? Complete ROI Analysis 2026 and How Hard Is the AZ-305 Exam? Complete Difficulty Guide 2026 for an honest assessment before you register.
| Attribute | Detail |
|---|---|
| Exam code | AZ-305: Designing Microsoft Azure Infrastructure Solutions |
| Delivery | Pearson VUE - test center or online proctoring |
| US price | $165 USD plus applicable taxes |
| Exam time / seat time | 100 minutes exam time / 120 minutes seat time (no-lab exams) |
| Passing score | 700 or greater |
| Prerequisite | Microsoft Certified: Azure Administrator Associate |
| Validity | 12 months, renewable free via Microsoft Learn assessment |
Who Hires AZ-305-Certified Architects
AZ-305 is aimed squarely at people whose job title includes some variation of "architect" - solutions architect, cloud architect, infrastructure architect, or senior engineer transitioning into architecture. Because the exam weights infrastructure design (Domain 4) and identity/governance (Domain 1) so heavily, organizations tend to seek this certification for roles responsible for:
- Designing landing zones and governance frameworks for enterprise Azure adoption
- Leading migration projects from on-premises data centers to Azure
- Owning network and security architecture decisions across multiple subscriptions
- Advising development teams on application architecture patterns that align with organizational standards
Consulting firms, systems integrators, and enterprises running large Azure estates are the most common employers seeking this credential, since it signals the candidate can operate above the level of day-to-day administration. For a closer look at real job listings and typical responsibilities, browse AZ-305 Jobs, and for compensation context tied to this specific credential, see AZ-305 Salary Guide 2026: Complete Earnings Analysis.
A Domain-Weighted Prep Timeline
Generic study advice rarely accounts for how lopsided AZ-305's domain weighting actually is. Since Domain 4 (30-35%) and Domain 1 (25-30%) together make up more than half the exam, your schedule should reflect that imbalance rather than splitting time evenly across four domains.
Domain 4 Foundations
- Map compute services (VMs, App Service, AKS, Functions) to workload scenarios
- Practice hub-and-spoke and hybrid network design questions
Domain 1 Deep Dive
- Work through Entra ID, RBAC, and Azure Policy case studies
- Design management group hierarchies for multi-subscription governance
Domains 2 and 3
- Compare Azure SQL, Cosmos DB, and storage redundancy options
- Build backup and disaster recovery designs using Site Recovery and Azure Backup
Integration and Practice
- Run full-length practice case studies mixing all four domains
- Review weak areas flagged by practice exams before scheduling the real test
This is a starting framework, not a rigid rulebook - adjust the pace based on your existing Azure experience. For a more detailed week-by-week breakdown with specific resources, read the AZ-305 Study Guide 2026: How to Pass on Your First Attempt. And once you're ready to test your readiness under real exam conditions, our practice tests mirror the case-study format you'll see on exam day.
Renewal, Retirement, and Staying Current
The English-language exam and its study guide were most recently updated for skills measured as of April 17, 2026, and Microsoft has not listed a retirement date for AZ-305. That said, Microsoft periodically refreshes skills-measured documents as Azure services evolve, so always check the official study guide close to your test date rather than relying solely on older prep material.
Once earned, Microsoft Certified: Azure Solutions Architect Expert - like other role-based certifications - expires 12 months after you pass. Renewal is free and happens through a short online assessment on Microsoft Learn during the renewal window, with no need to retake the full proctored exam. Set a calendar reminder a few weeks before expiration so you don't lose the credential unintentionally.
If you're still untangling terminology around the exam code, credential name, and what each part signifies, these quick-reference guides may help: What Does AZ-305 Stand For?, What Does AZ-305 Mean?, What Is A AZ-305?, and What Is AZ-305 Certification?. For structured coursework rather than self-study, see AZ-305 Training, and for a general orientation to the certification as a whole, revisit AZ-305 Certification.
Frequently Asked Questions
Yes. Microsoft requires you to hold the Azure Administrator Associate certification before AZ-305 will grant the Azure Solutions Architect Expert title, even though you can register for and sit the AZ-305 exam itself independently.
Microsoft states most certification exams contain roughly 40-60 questions, but the exact count varies by exam and by update, and Microsoft does not publish a fixed number for AZ-305 specifically.
Start with Design infrastructure solutions, since it carries the highest weight at 30-35%, followed by Design identity, governance, and monitoring solutions at 25-30%.
Yes, for associate and expert-level exams, Microsoft Learn reference content is accessible within the Learn domain during the test while the timer continues to run.
The certification expires 12 months after you earn it. Renewal is free and completed through an online Microsoft Learn assessment during the designated renewal window, with no need to retake the full exam.