About This Domain
Domain 3 — Design Business Continuity Solutions — accounts for 10-15% of the AZ-305 certification exam. This domain evaluates your understanding of design sla-based availability architectures, design backup and disaster recovery solutions, design solutions using availability zones and regions, and related concepts. Design solutions for high availability, backup, and disaster recovery. To pass this section you need practical knowledge of how these services and patterns work together in real-world architectures.
What You'll Be Tested On
- Design SLA-based availability architectures
- Design backup and disaster recovery solutions
- Design solutions using availability zones and regions
- Calculate composite SLAs for multi-service architectures
Key Azure Services in This Domain
Study Strategy for Domain 3
While 10-15% might seem like a smaller portion of the exam, every point counts toward the passing score. Focus on understanding core concepts and common exam scenarios for this domain. Don't neglect it — even a few missed questions here can make the difference between pass and fail.
Exam Tips for Domain 3
Composite SLA = SLA₁ × SLA₂ × SLA₃ (each dependency reduces overall SLA).
Availability zones protect against datacenter failures within a region.
RPO defines acceptable data loss; RTO defines acceptable downtime.
Frequently Asked Questions
How many questions on the AZ-305 exam come from Domain 3?
Domain 3 (Design Business Continuity Solutions) makes up 10-15% of the AZ-305 exam. The exam has 65 scored questions, so approximately 7 questions will come from this domain.
What services should I focus on for Domain 3?
The key services for this domain include Business Continuity. Make sure you understand how each service works, its use cases, and how they integrate with one another.
How should I prepare for Design Business Continuity Solutions questions?
Start by reviewing the key topics listed above, then practice with domain-specific questions. Focus on understanding real-world scenarios rather than memorizing facts. Use our practice quizzes to test your knowledge and review explanations for any questions you get wrong.
What's the best order to study the AZ-305 domains?
Many candidates start with the highest-weighted domains first. For the AZ-305 exam, the domains in order of weight are: Design Identity, Governance, and Monitoring Solutions (25-30%), Design Data Storage Solutions (25-30%), Design Business Continuity Solutions (10-15%), Design Infrastructure Solutions (25-30%). However, start with whichever domain aligns best with your existing experience.
Practice Domain 3 Questions
Test your knowledge of Design Business Continuity Solutions with practice questions from our AZ-305 question bank.
Start Practice Quiz →