Designing reliable cloud solutions requires more than knowing individual Azure services. An Azure solutions architect must understand how identity, networking, storage, compute, security, monitoring, business continuity, and governance work together to satisfy real business requirements.

The Microsoft AZ-305: Designing Microsoft Azure Infrastructure Solutions exam is built around these architectural decisions. This guide explains the current AZ-305 exam structure, major study areas, preparation strategies, five original demo questions, and official Microsoft resources to help you prepare effectively.

Note: Microsoft updated the English version of AZ-305 on April 17, 2026, so candidates should use the latest Microsoft study guide when planning their preparation.

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What Is the AZ-305 Exam?

The AZ-305 exam is the certification exam associated with the Microsoft Certified: Azure Solutions Architect Expert credential.

The exam evaluates your ability to design Azure and hybrid solutions across areas such as:

• Identity and governance
• Monitoring
• Data storage
• Business continuity
• Infrastructure
• Networking
• Compute
• Security
• Migration

Microsoft describes the target candidate as someone who can translate business requirements into Azure solution designs and align those designs with the Azure Well-Architected Framework and Cloud Adoption Framework for Azure.

The role requires more than basic Azure administration. Candidates should understand how architectural decisions affect security, scalability, performance, availability, cost, and operations.

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AZ-305 Exam Overview

Microsoft currently lists a 700 passing score for AZ-305. The English version of the exam was updated on April 17, 2026, and there is currently no listed retirement date.

Microsoft also recommends that candidates have advanced knowledge of areas including networking, virtualization, identity, security, business continuity, disaster recovery, data platforms, governance, Azure administration, Azure development, and DevOps.

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AZ-305 Exam Domains

The current AZ-305 skills measured by Microsoft are divided into four major areas:

Because Design infrastructure solutions carries the highest weighting, it deserves substantial preparation time. However, all four domains should be covered because AZ-305 questions frequently require you to combine knowledge from multiple Azure services.

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1. Design Identity, Governance & Monitoring Solutions

Identity is fundamental to secure Azure architecture.

You should understand:

• Microsoft Entra ID
• Managed identities
• Role-based access control
• Azure Policy
• Management groups
• Subscriptions
• Resource groups
• Azure Monitor
• Log Analytics
• Azure Activity Log
• Governance
• Security controls

Managed Identities

Managed identities allow Azure resources to authenticate to supported services without developers having to manage credentials directly.

For architecture scenarios, understand when a system-assigned managed identity or user-assigned managed identity makes sense.

Azure Policy

Azure Policy helps organizations enforce organizational standards and evaluate resource compliance.

For example, an organization could use policy to restrict resource deployments to approved regions or require particular configurations.

Monitoring

Architects should understand how to design monitoring solutions that provide visibility into:

• Application performance
• Infrastructure health
• Availability
• Logs
• Metrics
• Alerts
• Operational events

The objective is not simply to collect data. A good architecture makes monitoring actionable.

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2. Design Data Storage Solutions

Data architecture is another major part of AZ-305 preparation.

Important topics include:

• Azure Storage
• Blob Storage
• Azure Files
• Azure Managed Disks
• Azure SQL
• Azure Cosmos DB
• Azure Database services
• Data redundancy
• Data migration
• Backup
• Encryption
• Data lifecycle management

A common architectural question might describe an application that needs highly available storage, low latency, or global distribution and ask you to select the most appropriate Azure service.

The key is to identify the business requirement first.

For example:

• Object data → consider Blob Storage
• File shares → consider Azure Files
• Relational workloads → evaluate Azure SQL options
• Globally distributed NoSQL workloads → evaluate Cosmos DB

Don't choose a service simply because it is familiar. Choose it based on the requirements in the scenario.

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3. Design Business Continuity Solutions

Business continuity and disaster recovery are essential architecture topics.

Review:

• Recovery Point Objective (RPO)
• Recovery Time Objective (RTO)
• Backup
• Disaster recovery
• High availability
• Failover
• Azure Site Recovery
• Azure Backup
• Availability Zones
• Region redundancy
• Recovery strategies

RPO vs. RTO

A simple way to remember the difference:

RPO = How much data can the business afford to lose?

RTO = How long can the service be unavailable?

When answering scenario-based questions, identify these requirements before selecting a technology.

For example, a workload requiring extremely low downtime may require a different architecture from an application that can tolerate several hours of recovery.

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4. Design Infrastructure Solutions

This is currently the largest AZ-305 domain, accounting for 30–35% of the exam.

Important areas include:

• Azure Virtual Machines
• Azure App Service
• Azure Container Apps
• Azure Kubernetes Service
• Azure Functions
• Virtual networks
• Network security
• Load balancing
• Application Gateway
• Azure Front Door
• VPN
• ExpressRoute
• Hybrid connectivity
• Migration
• Infrastructure architecture

Microsoft's current study guide specifically includes designing connectivity to the internet and on-premises networks, optimizing network performance and security, and selecting load-balancing and routing solutions.

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Azure Networking for AZ-305

Networking is one of the areas where architectural understanding really matters.

Study:

• Virtual networks
• Subnets
• Network Security Groups
• Private endpoints
• Private DNS
• VPN Gateway
• ExpressRoute
• Azure Firewall
• Application Gateway
• Load Balancer
• Azure Front Door
• Network routing

ExpressRoute vs. VPN

Understand the architectural difference rather than memorizing definitions.

A scenario requiring a dedicated private connection between an organization's on-premises environment and Azure may point toward ExpressRoute.

A scenario where encrypted connectivity over the public internet is sufficient may point toward a VPN solution.

The correct answer depends on requirements such as performance, connectivity, security, availability, and cost.

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Azure Compute Architecture

AZ-305 candidates should understand the strengths and trade-offs of different compute models.

Review:

Azure Virtual Machines

Useful when organizations require greater control over the operating system and virtual machine environment.

Azure App Service

A managed platform suitable for hosting web applications and APIs without managing the underlying virtual machines.

Azure Functions

A serverless option for event-driven workloads and short-running functions.

Containers

Understand when containerized applications are appropriate and how Azure services can host container workloads.

Azure Kubernetes Service

AKS is useful when an organization needs Kubernetes-based orchestration and control over containerized workloads.

The exam may present a business requirement and ask you to select the most appropriate compute architecture.

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Azure Well-Architected Framework

The Azure Well-Architected Framework is particularly valuable for AZ-305 preparation.

It helps architects evaluate workloads across areas such as:

• Reliability
• Security
• Cost Optimization
• Operational Excellence
• Performance Efficiency

When you encounter a scenario-based question, think like an architect:

What is the business requirement?

What constraint matters most?

Which architecture satisfies the requirement with the least unnecessary complexity?

This mindset can be more valuable than memorizing long lists of services.

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How to Prepare for the AZ-305 Exam

1. Start With the Current Microsoft Study Guide

The first step should be reviewing the current AZ-305 skills measured by Microsoft. The exam was updated in April 2026, so older preparation material may not perfectly reflect the current objectives.

Create a checklist for each domain and track your progress.

2. Study Azure Services by Use Case

Instead of memorizing service descriptions, create comparisons.

For example:

Azure Load Balancer vs. Application Gateway vs. Front Door

Ask:

• What layer does each operate at?
• What traffic does it handle?
• Does it provide web application features?
• Is global routing required?
• Is TLS termination needed?

This approach helps you handle scenario-based questions.

3. Practice Architecture Decisions

For each study topic, create a simple scenario.

For example:

A company needs a globally distributed application with low latency and automatic routing.

Then ask yourself which Azure services and architecture would satisfy the requirement.

4. Review Security and Governance

Don't treat security as a separate topic.

Consider security when studying:

• Networking
• Storage
• Identity
• Compute
• Databases
• Monitoring
• Disaster recovery

5. Get Hands-On Azure Experience

Microsoft recommends training and hands-on experience before taking AZ-305.

Build small architectures in Azure and experiment with:

• Virtual networks
• Storage
• App Service
• Managed identities
• Azure Monitor
• Azure SQL
• Private endpoints
• Load balancing

Hands-on experience makes architectural concepts much easier to understand.

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AZ-305 Practice Questions by CertsVault

Additional AZ-305 practice questions by CertsVault can be useful as a supplementary study resource.

Use practice questions after studying each domain to identify knowledge gaps. Rather than memorizing the correct option, review the reasoning behind it and understand why the other options don't satisfy the stated requirements.

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5 AZ-305 Demo Questions

The following are original educational practice questions and are not actual Microsoft exam questions.

Question 1: Hybrid Connectivity

A company needs a private, dedicated connection between its on-premises data center and Azure. The organization requires predictable network performance and does not want traffic to traverse the public internet.

Which solution should you recommend?

A. Azure VPN Gateway
B. ExpressRoute
C. Azure Front Door
D. Azure Application Gateway

Answer: B

ExpressRoute provides private connectivity between on-premises environments and Microsoft cloud services and is appropriate when dedicated connectivity is required.

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Question 2: Identity

An Azure application needs to access an Azure Storage account. The development team wants to avoid storing credentials or access keys in application configuration.

What should you recommend?

A. Store an access key in the application code
B. Use a managed identity
C. Use the subscription owner's credentials
D. Store credentials in a public repository

Answer: B

Managed identities allow supported Azure resources to authenticate to services without developers having to manage application credentials directly.

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Question 3: Business Continuity

A business-critical application must be restored after a regional disaster. The organization has defined both a maximum acceptable downtime and maximum acceptable data loss.

Which two concepts should the architect use when designing the recovery solution?

A. RPO
B. RTO
C. DNS
D. RBAC

Answer: A and B

RPO defines acceptable data loss, while RTO defines the acceptable recovery time.

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Question 4: Web Application Routing

An organization hosts a web application and requires Layer 7 routing, TLS termination, and web application firewall capabilities.

Which Azure service is the most appropriate choice?

A. Azure Application Gateway
B. Azure Load Balancer
C. Azure VPN Gateway
D. Azure Traffic Manager

Answer: A

Application Gateway provides Layer 7 application delivery capabilities and supports features such as TLS termination and Web Application Firewall.

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Question 5: Governance

An organization wants to prevent teams from deploying Azure resources outside approved regions.

Which Azure service should the architect recommend?

A. Azure Policy
B. Azure Monitor
C. Azure DNS
D. Azure Load Balancer

Answer: A

Azure Policy can enforce organizational rules and evaluate Azure resources for compliance with those policies.

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Official AZ-305 Study Resources

When preparing for AZ-305, prioritize Microsoft's current documentation because the exam objectives can change.

Microsoft AZ-305 Exam Page

Microsoft AZ-305 Exam: Designing Microsoft Azure Infrastructure Solutions

Official AZ-305 Study Guide

Microsoft AZ-305 Official Study Guide

Azure Architect Design Learning Path

AZ-305 Microsoft Azure Architect Design Prerequisites

Microsoft Azure Architecture Center

Azure Architecture Center

Azure Well-Architected Framework

Azure Well-Architected Framework

Microsoft Azure Documentation

Microsoft Azure Documentation

Microsoft Azure Solutions Architect Expert Certification

Azure Solutions Architect Expert Certification

Microsoft's current certification information lists AZ-305 as the required exam for the Azure Solutions Architect Expert certification and indicates that the certification also has a prerequisite certification requirement.

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A Simple AZ-305 Study Plan

Week 1: Identity and Governance

Study Microsoft Entra ID, RBAC, managed identities, Azure Policy, management groups, subscriptions, and monitoring.

Week 2: Data and Storage

Review Azure Storage, Azure SQL, Cosmos DB, data migration, redundancy, backup, and data security.

Week 3: Infrastructure and Networking

Focus on VNets, private endpoints, VPN Gateway, ExpressRoute, load balancing, Application Gateway, Front Door, compute, and hybrid architectures.

Week 4: Business Continuity

Study high availability, backup, disaster recovery, RPO, RTO, Availability Zones, and regional recovery strategies.

Week 5: Architecture Review

Use Azure Architecture Center and the Well-Architected Framework to analyze real-world architecture scenarios.

Final Preparation

Take practice assessments, review weak domains, and practice explaining why a particular Azure architecture is appropriate for a given business requirement.

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Common AZ-305 Preparation Mistakes

Memorizing Azure Services

AZ-305 is about architectural decisions. Knowing what a service does is useful, but understanding when to use it is more important.

Ignoring Business Requirements

Read every scenario carefully. Requirements involving cost, performance, security, availability, compliance, and latency can completely change the recommended solution.

Overlooking Hybrid Architecture

Be comfortable designing solutions that connect Azure with existing on-premises infrastructure.

Studying From Outdated Material

Microsoft updated the English AZ-305 exam on April 17, 2026. Always compare your preparation material with the latest official study guide.

Not Practicing Architecture Scenarios

Try designing solutions from real-world requirements instead of only reading service documentation.

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Final Thoughts

The AZ-305 exam is ultimately about thinking like an Azure solutions architect. You need to understand how different Azure services fit together and how to choose an architecture based on business, technical, security, performance, availability, and cost requirements.

Start with the latest Microsoft exam objectives, build your knowledge of Azure infrastructure and data services, practice architecture scenarios, and gain hands-on experience wherever possible.

Use CertsVault practice questions as an additional way to reinforce your preparation and identify areas that need more review.

For the best results, don't simply ask, “Which Azure service does this question mention?” Instead ask, “What requirement is the customer trying to satisfy, and which architecture meets that requirement most effectively?”

Prepare With CertsVault

If you're looking for additional AZ-305 practice questions to supplement your preparation, visit www.certsvault.com.

Use supplementary practice alongside Microsoft's official learning resources and hands-on Azure experience to build genuine architecture skills and approach the AZ-305 exam with greater confidence.