- AZ-305 requires passing the exam AND holding Microsoft Certified: Azure Administrator Associate first.
- Four domains are weighted unevenly - Design infrastructure solutions is the largest at 30-35%.
- Passing score is 700, delivered via Pearson VUE, priced around $165 USD in the United States.
- The certification expires after 12 months but renews free through a Microsoft Learn assessment.
What AZ-305 Actually Is
AZ-305: Designing Microsoft Azure Infrastructure Solutions is the exam Microsoft requires to earn the Microsoft Certified: Azure Solutions Architect Expert credential. Unlike entry-level Azure exams that test whether you can configure a resource, AZ-305 tests whether you can design the solution before anyone touches the Azure portal. You're evaluated on architectural decision-making: choosing between compute options, designing for failover, structuring governance across subscriptions, and justifying tradeoffs in scenario-driven questions.
This is not a beginner exam. Microsoft's own guidance says candidates should already have advanced knowledge across Azure administration, networking, virtualization, identity, security, business continuity, disaster recovery, data platform, governance, development, and DevOps. If you're still learning what a virtual network is, AZ-305 is the wrong starting point - you'd want the associate-level administrator exam first anyway, since it's a hard prerequisite.
For a deeper breakdown of what the credential represents in practical terms, see our companion pieces on AZ-305 Certification and AZ-305 Meaning, which cover the naming convention and what the letters and numbers signify in Microsoft's exam catalog.
Prerequisites and Certification Path
To actually earn Microsoft Certified: Azure Solutions Architect Expert, you need two things: a passing score on AZ-305, and an active Microsoft Certified: Azure Administrator Associate certification. This is different from many Microsoft exams that stand alone. AZ-305 assumes you've already proven hands-on administrative competency, and it builds architectural reasoning on top of that foundation.
Practically, this means most candidates arrive at AZ-305 after:
- Passing AZ-104 (Azure Administrator Associate) or equivalent experience-based qualification
- Working directly with Azure resources - VMs, storage accounts, VNets, Azure AD (Entra ID) - in a production or lab environment
- Exposure to governance tooling like Azure Policy, management groups, and cost management
If you're unclear on how this exam fits into the broader certification landscape, our article What Is AZ-305 Certification? walks through the full path, and What Does AZ-305 Stand For? explains the exam-naming logic Microsoft uses across its Azure role-based tracks.
The Four AZ-305 Domains
Microsoft organizes AZ-305 around four official skill areas, each with a published weighting range. These weights aren't arbitrary - they tell you exactly where to spend your study hours.
Domain 4: Design infrastructure solutions (30-35%)
The largest domain by weight, covering compute selection (VMs vs. containers vs. serverless), application architecture patterns, network design, and migration strategy. Expect scenario questions that ask you to pick the right compute or networking approach given constraints like cost, latency, or compliance.
- Compute solution selection (App Service, AKS, Azure Functions, VMs)
- Application architecture (microservices, messaging, event-driven design)
- Network topology design (hub-spoke, VPN, ExpressRoute, private endpoints)
- Migration planning between on-premises and Azure
Domain 1: Design identity, governance, and monitoring solutions (25-30%)
Second-largest domain, focused on authentication, authorization, RBAC, management group structures, Azure Policy, and monitoring/alerting design. This domain tests whether you can build a governance model that scales across multiple subscriptions and teams.
- Azure AD (Entra ID) design, including hybrid identity
- RBAC and management group hierarchies
- Azure Policy and compliance design
- Monitoring solution design with Azure Monitor and Log Analytics
Domain 2: Design data storage solutions (20-25%)
Covers relational and non-relational data storage design, including choosing between Azure SQL, Cosmos DB, storage accounts, and data integration services. Expect questions about consistency models, partitioning, and storage tiering.
- Relational data storage (Azure SQL, Managed Instance)
- Non-relational storage (Cosmos DB, Table Storage, Blob Storage)
- Data integration (Data Factory, Synapse)
Domain 3: Design business continuity solutions (15-20%)
The smallest domain by weight but not by complexity - it covers backup strategy, disaster recovery, and high availability design across regions and availability zones.
- Backup and Azure Site Recovery design
- High availability across availability zones and regions
- Data redundancy strategies (LRS, ZRS, GRS)
Each of these domains has a full standalone breakdown if you want to go deeper: Domain 1: Identity, Governance, and Monitoring, Domain 2: Data Storage Solutions, Domain 3: Business Continuity Solutions, and Domain 4: Infrastructure Solutions. For a side-by-side comparison of all four, the AZ-305 Exam Domains 2026 guide is worth reading before you build a study plan.
| Domain | Weight | Core Focus |
|---|---|---|
| Design infrastructure solutions | 30-35% | Compute, app architecture, networking, migrations |
| Design identity, governance, and monitoring solutions | 25-30% | Identity, RBAC, policy, monitoring |
| Design data storage solutions | 20-25% | Relational/non-relational storage, integration |
| Design business continuity solutions | 15-20% | Backup, DR, high availability |
Exam Format, Question Types, and Timing
Microsoft doesn't publish an exact question count for AZ-305, but it falls within the typical Microsoft certification range of 40-60 questions. Because AZ-305 is an associate/expert role-based exam without a fixed lab requirement, you get 100 minutes of actual exam time and 120 minutes of total seat time once you factor in the NDA and survey screens.
The question sandbox draws from several formats, and Microsoft doesn't tell you in advance which ones will appear or in what proportion:
- Case studies - multi-question scenarios based on a fictional company's requirements, often the most time-consuming part of the exam
- Drag-and-drop - sequencing steps or matching services to requirements
- Hot area - selecting the correct option within a diagram or statement
- Build list - arranging items in the correct order
- Active screen - interactive exhibits you manipulate to answer
- Multiple choice - traditional single or multi-answer questions
- Possible labs - Microsoft doesn't publish which exams include them, so treat hands-on practice as essential regardless
One detail that catches candidates off guard: Microsoft Learn access is available during the exam within the Learn domain, and the timer keeps running while you use it. It's a safety net, not a research break - relying on it heavily will cost you time you don't have.
A passing score is 700 or greater, scored on Microsoft's standard 1-1000 scale. Microsoft does not publicly disclose pass rates, so treat any specific percentage you see elsewhere with skepticism - our own data-driven look at this is in AZ-305 Pass Rate 2026: What the Data Shows. If you want a candid assessment of how the format and content translate into real difficulty, read How Hard Is the AZ-305 Exam?.
Registration, Pricing, and Delivery
AZ-305 is delivered exclusively through Pearson VUE, either at a physical test center or via online proctoring from your home or office. Pricing is region-specific; in the United States, the associate/expert-tier price is typically $165 USD plus applicable taxes. Microsoft doesn't publish a member/non-member pricing split for this exam, so the price you see at registration is generally the price you pay, aside from regional tax variance.
The English-language version of the exam and its accompanying study guide were most recently updated for skills measured as of April 17, 2026, and no retirement date has been announced. That update matters - if you're studying from older material, verify it reflects the current skills outline before you build a study plan around it.
For the full pricing picture, including retake costs and what's bundled with self-paced Microsoft Learn content versus paid training, see AZ-305 Certification Cost 2026: Complete Pricing Breakdown.
Who Hires AZ-305-Certified Architects
AZ-305 targets a specific role: the cloud or solutions architect who designs Azure environments rather than just administers them. This distinction shows up clearly in hiring. Organizations look for AZ-305 holders when they need someone who can:
- Translate business requirements into an Azure architecture diagram before deployment begins
- Own governance decisions across multiple subscriptions and business units
- Design disaster recovery and business continuity plans that meet defined RTO/RPO targets
- Evaluate cost, performance, and compliance tradeoffs between competing Azure services
This tends to map to titles like Cloud Solutions Architect, Azure Infrastructure Architect, Cloud Engineering Lead, and Enterprise Architect (Azure focus). Because the certification requires the Administrator Associate prerequisite, employers also read AZ-305 as a signal that a candidate has both hands-on and design-level competency - not architecture theory without implementation experience.
If you're evaluating whether this credential is worth pursuing for your career stage, our ROI analysis and AZ-305 Salary Guide 2026 go deeper on market positioning, and AZ-305 Jobs breaks down the roles actively requesting this certification in job postings.
How to Approach Preparation
Because AZ-305 weights its domains unevenly, your study schedule shouldn't split time evenly across all four. Domain 4 (Design infrastructure solutions) and Domain 1 (Identity, governance, and monitoring) together account for more than half the exam, so they deserve proportionally more study weeks than Domain 3 (Business continuity), even though business continuity questions can be conceptually dense.
Domain 4 - Infrastructure Solutions
- Compare compute services (App Service, AKS, Functions, VMs) against scenario requirements
- Practice hub-spoke and hybrid network design
- Review migration tooling and strategy patterns
Domain 1 - Identity, Governance, Monitoring
- Build out RBAC and management group hierarchies in a sandbox subscription
- Practice Azure Policy scenarios tied to compliance requirements
- Study Azure Monitor and Log Analytics query design
Domain 2 - Data Storage Solutions
- Contrast Cosmos DB consistency models against relational alternatives
- Review storage redundancy and tiering decisions
Domain 3 - Business Continuity + Case Study Practice
- Design backup and DR strategies for multi-region scenarios
- Run timed full-length case studies to build stamina for the 100-minute format
Spaced repetition works well for memorizing service limits and SLA tiers, but AZ-305 rewards scenario reasoning more than recall - so weight your practice toward full case studies, not flashcards. For a complete week-by-week plan with specific resources, see the AZ-305 Study Guide 2026. You can also run realistic timed practice sessions on our AZ-305 practice test platform to get comfortable with the case-study pacing before exam day.
Key Takeaway
Allocate study time roughly in proportion to domain weight - spend the most hours on Domain 4 and Domain 1, since together they make up more than half the scored content.
Renewal and Certification Lifespan
Once earned, Microsoft Certified: Azure Solutions Architect Expert expires 12 months after the date you pass. Renewal is free and doesn't require retaking the full AZ-305 exam - instead, Microsoft opens an online renewal assessment through Microsoft Learn during a window before expiration. This assessment covers updated skills content rather than repeating the original exam experience, which means staying current with Azure changes throughout the year actually helps more than last-minute cramming before renewal.
This annual renewal cycle also means the skills-measured document gets revised periodically - the current version reflects updates as of April 17, 2026 - so even certified architects should periodically recheck the domain breakdown for shifts in emphasis. You can practice against updated scenario styles anytime using our AZ-305 practice exams.
Frequently Asked Questions
You need to hold Microsoft Certified: Azure Administrator Associate to actually earn the Solutions Architect Expert certification after passing AZ-305. You can technically sit for AZ-305 without it, but you won't receive the credential until both requirements are met.
Microsoft doesn't publish an exact count for AZ-305 specifically, but most Microsoft certification exams, including this one, typically contain 40-60 questions within a 100-minute exam time limit.
Microsoft doesn't publish a fixed list of which exams include labs, and the exam sandbox lists labs as a possible question type alongside case studies, drag-and-drop, hot area, and multiple choice. Prepare as if labs could appear.
The typical price is $165 USD plus applicable taxes for associate/expert-tier exams like AZ-305, though pricing varies by country or region since it's set locally by Microsoft.
It expires 12 months after you pass and renews for free by completing an online Microsoft Learn renewal assessment during the designated renewal window - no need to retake the full AZ-305 exam.