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Your complete reference for the Designing Microsoft Azure Infrastructure Solutions certification — exam cost, format, question types, prerequisites, who should take it, and everything in between.
This is a 6-page guide — not just this page. Each domain section shows you exactly what the exam tests on each sub-topic, so you know precisely what to prepare for.
The AZ-305 is Microsoft's expert-level certification exam for Azure solution architects. Passing it, along with holding the Azure Administrator Associate credential, earns you the Microsoft Certified: Azure Solutions Architect Expert designation, one of the most respected and highest-paying cloud certifications in the industry.
The AZ-305 exam validates your ability to design cloud and hybrid solutions that run on Azure. It covers five core areas: compute, network, storage, monitoring, and security, but at the design level. Unlike AZ-104, which tests whether you can configure and manage Azure services, AZ-305 tests whether you can recommend the right architecture for a given business and technical requirement.
Questions use the language of architecture: recommend, evaluate, design. You are given a business scenario and asked to justify which Azure service, pattern, or combination best satisfies it, factoring in cost, scalability, availability, security, and operational constraints simultaneously.
The AZ-305 certification is valid for one year. Microsoft requires annual renewal via a free, short online assessment on Microsoft Learn, with no exam fee and no proctor required.
AZ-305 sits at the Expert level of Microsoft's Azure certification hierarchy. Unlike many Expert certifications, it has a hard prerequisite. You must already hold the Azure Administrator Associate credential before you can earn the Solutions Architect Expert designation.
Yes. Unlike AZ-104 where AZ-900 is only recommended, the AZ-104 (Azure Administrator Associate) credential is a hard prerequisite for the Azure Solutions Architect Expert certification. You cannot earn the Expert badge without holding the Associate credential first. If you don't yet have AZ-104, that is your first step.
AZ-305 is designed for senior technical professionals who design Azure solutions rather than just operate them. The exam is genuinely Expert-level. It assumes you already understand how Azure services work and tests whether you can make the right architectural decisions across cost, availability, security, and scalability constraints simultaneously.
Professionals responsible for designing Azure infrastructure solutions for enterprise workloads. AZ-305 validates your ability to translate business requirements into technical architectures that are secure, scalable, cost-effective, and maintainable.
Experienced Azure administrators who have built deep hands-on knowledge across multiple Azure domains and are ready to move into a design and advisory role. The AZ-305 provides a formal credential for the architecture skills you've developed in practice.
Technical consultants who advise enterprise clients on Azure adoption, migration strategy, and infrastructure design. The Azure Solutions Architect Expert credential is one of the most frequently cited requirements in architecture and consulting roles globally.
Unlike most Microsoft exams, AZ-305 has a formal credential prerequisite in addition to the recommended experience baseline:
AZ-305 rewards breadth of Azure knowledge and the ability to reason through design trade-offs — not just recall of service features. The most effective preparation combines understanding what the exam tests, hands-on design practice, and timed exam conditions.
AZ-305 questions are architecture questions, not configuration questions. They present a business scenario with stated requirements and ask you to recommend, evaluate, or compare Azure services and patterns.
The key skill is understanding why one service fits a scenario better than another — not just what each service does. Our domain pages map every sub-topic to the exact type of question the exam uses, so you can study with precision rather than covering every Azure service in equal depth.
Microsoft provides a free, self-paced learning collection for AZ-305 directly on Microsoft Learn. It is organised into six learning paths that map to the exam domains: Microsoft Azure Architect Design Prerequisites, Design identity, governance, and monitor solutions, Design business continuity solutions, Design data storage solutions, and Design infrastructure solutions.
Each learning path is broken into modules with hands-on exercises and knowledge checks. Working through these in order gives you structured coverage of every domain before you move on to practice tests and scenario-based revision.
AZ-305 case studies are the most time-intensive question type — a single case study may require reading four tabs of scenario information before answering five questions. Full-length timed practice tests are essential for building the pace and judgement to manage these effectively within the 100-minute window.
Reviewing every wrong answer with its explanation is where most learning happens. AZ-305 distractors are plausible — understanding why the correct answer is better than the second-best option is what separates passing from failing.
💡 Absolutely, and arguably more so than ever. As enterprises move past initial Azure adoption into complex multi-workload environments, the demand for professionals who can design at scale has grown sharply.
The AZ-305 is consistently ranked among the top-paying IT certifications globally. Architecture roles, where this credential is most relevant, command premium salaries because the decisions architects make have direct, measurable business impact on cost, resilience, and time-to-market.
For Azure professionals who have already earned AZ-104, AZ-305 is the natural next credential. It opens doors to Principal Architect, Cloud Solutions Architect, and senior consulting roles that explicitly require it.
In 2026, with AI workloads increasingly being designed and deployed on Azure, the demand for architects who understand how to design reliable, secure, and cost-optimized Azure environments has never been higher.
The AZ-305 has a specific structure: a fixed time limit, a defined score threshold, and multiple question formats including case studies. Knowing these details before exam day means you can pace yourself correctly and walk in with a clear picture of what you are being measured against.
AZ-305 uses the same interactive question formats as other Microsoft exams. The key difference at the Expert level is that case studies are more frequent and more detailed — a single case study can have 4–6 questions tied to a multi-tab business scenario. Knowing what to expect removes anxiety and saves valuable time.
A scenario is followed by four to six options. Exactly one answer is correct. At the AZ-305 level, all options are plausible — the correct answer is the one that best fits the stated constraints. Elimination is essential.
The question asks you to select two or more correct answers from a list. Checkboxes replace radio buttons. The question states how many answers are required. Each correct selection earns one point independently.
A scenario is described, followed by a series of statements. For each statement, you select Yes (true) or No (false). These test precise knowledge of service capabilities, limits, and behaviours.
| Statement | Yes | No |
|---|---|---|
| The secondary database can be used for read queries | ||
| Failover to the secondary is automatic without configuration | ||
| An auto-failover group can be added on top of geo-replication |
A scenario is followed by one or more dropdown menus, each asking a specific design question. Each dropdown is scored independently. Read the full scenario before opening any dropdown.
A detailed business scenario is presented in a left-side panel with multiple tabs (Overview, Existing Environment, Requirements, Technical Constraints). You answer 4–6 questions based on this shared context. Case study questions can themselves be any format — MCQ, Yes/No, or dropdown.
A fixed scenario is presented, followed by a proposed solution. You answer Yes (if the solution works) or No (if it doesn't). These appear in series — the same scenario repeats across 2–3 questions, each with a different proposed solution.
A company needs to connect its on-premises network to Azure with a guaranteed bandwidth of 1 Gbps and a private connection that does not traverse the public internet.
Solution: You configure a Site-to-Site VPN using a VPN Gateway with the VpnGw1 SKU.
Does this meet the goal?
A list of items appears on the left side of the screen. An "Answer Area" with empty target boxes appears on the right. You drag each item from the left and drop it into the correct box on the right. Items may be used once, more than once, or not at all.
AZ-104 tests whether you can configure and manage Azure services correctl. It is an administrator exam. AZ-305 tests whether you can design the right architecture for a given set of business and technical requirements. It is an architect exam.
In practical terms: AZ-104 questions ask "how do you do X in Azure?". AZ-305 questions ask "given these business constraints, which service or architectural pattern best satisfies this scenario, and why?" AZ-305 questions use language like "recommend", "evaluate", and "design". The correct answer is the one that best balances all stated requirements, not simply the one that technically works.
AZ-305 is an expert-level exam and significantly harder than AZ-104. Questions present real business scenarios and require you to recommend, evaluate, and compare Azure architectural options while simultaneously factoring in cost, availability, security, and operational constraints.
The difficulty is not about memorising Azure services. It is about reasoning through trade-offs under constraints. Candidates with hands-on architecture experience find it manageable. Those coming only from an administrative or study-only background often underestimate how much design reasoning the exam requires.
Yes. Azure is one of the two dominant cloud platforms globally, and demand for professionals who can design at the architecture level continues to grow as enterprises move beyond initial cloud adoption into complex, multi-workload environments.
The Microsoft Certified: Azure Solutions Architect Expert certification consistently ranks among the top-paying IT certifications globally, and AZ-305 is frequently listed as a direct requirement in Principal Architect and Solutions Architect job postings worldwide. If you are working in or moving toward cloud architecture roles, AZ-305 is one of the most credible and recognised credentials you can hold.
Yes, significantly. The Azure Solutions Architect Expert certification consistently appears in the top tier of IT certifications by salary premium. Certified Azure architects earn substantially above average IT salaries, with the premium most pronounced in enterprise environments and consulting roles where architectural decisions have direct business impact.
The exact figures vary by country, industry, and years of experience, but the credential signals a level of technical seniority that justifies higher compensation in most hiring markets.
Yes. AZ-305 can be taken via online remote proctoring through Pearson VUE OnVUE, or in person at a Pearson VUE test centre. The online option requires a webcam, microphone, a stable internet connection, and a private room free from distractions. Both formats deliver the same exam content and are scored identically.
To earn the Microsoft Certified: Azure Solutions Architect Expert badge, you must hold the Microsoft Certified: Azure Administrator Associate (AZ-104) certification. You can sit the AZ-305 exam before completing AZ-104, but the expert certification will only be awarded once both are completed.
Beyond the formal requirement, Microsoft recommends candidates have advanced hands-on experience with Azure administration, networking, identity, security, and business continuity design before attempting AZ-305.
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