The answer is Azure Site Recovery (ASR), which is the correct choice because it provides continuous replication with a native RPO as low as 30 seconds—easily meeting the 30-minute requirement—and orchestrates failover to achieve the 1-hour RTO through pre-staged recovery plans and automated runbooks. For non-disruptive test failovers, ASR uses isolated virtual networks during drills, allowing quarterly compliance testing without impacting production workloads. On the AZ-305 exam, this scenario tests your ability to match specific RPO/RTO thresholds to the right service, often trapping candidates who confuse Azure Backup (which offers longer RPOs and no test failover) with Site Recovery. A key memory tip is to think of ASR as the “replication and drill” service: if the question mentions test failovers or a sub-hour RPO, your answer is always Site Recovery.
AZ-305 Design business continuity solutions Practice Question
This AZ-305 practice question tests your understanding of design business continuity solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. A key principle to apply: azure Site Recovery provides continuous replication for VMs.. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company runs a critical line-of-business application on 10 Azure VMs. They need a disaster recovery solution that replicates the VMs to a secondary region with a recovery point objective (RPO) of 30 minutes and a recovery time objective (RTO) of 1 hour. The solution must support non-disruptive testing of failover for quarterly compliance drills. Which Azure service should they use?
Why wrong: Azure Backup is designed for backups and point-in-time restore, not for continuous replication and automated failover with specified RPO/RTO for disaster recovery.
B
Azure Site Recovery
Azure Site Recovery provides continuous replication, orchestrated failover, and supports test failovers for non-disruptive DR drills, meeting the RPO of 30 minutes and RTO of 1 hour.
C
Azure Migrate
Why wrong: Azure Migrate is used for assessing and migrating on-premises workloads to Azure, not for ongoing replication and disaster recovery.
D
Manual VM replication to secondary region
Why wrong: Manual replication cannot guarantee the required RPO/RTO and does not provide automated failover or a simple way to perform non-disruptive testing.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Site Recovery
Azure Site Recovery (ASR) orchestrates replication, failover, and failback of Azure VMs to a secondary region, meeting the RPO of 30 minutes (continuous replication with 30-second RPO) and RTO of 1 hour (orchestrated recovery). It supports non-disruptive test failovers via isolated networks, which is essential for quarterly compliance drills without impacting production.
Key principle: Azure Site Recovery provides continuous replication for VMs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Azure Backup
Why it's wrong here
Azure Backup is designed for backups and point-in-time restore, not for continuous replication and automated failover with specified RPO/RTO for disaster recovery.
✓
Azure Site Recovery
Why this is correct
Azure Site Recovery provides continuous replication, orchestrated failover, and supports test failovers for non-disruptive DR drills, meeting the RPO of 30 minutes and RTO of 1 hour.
Related concept
Azure Site Recovery provides continuous replication for VMs.
✗
Azure Migrate
Why it's wrong here
Azure Migrate is used for assessing and migrating on-premises workloads to Azure, not for ongoing replication and disaster recovery.
✗
Manual VM replication to secondary region
Why it's wrong here
Manual replication cannot guarantee the required RPO/RTO and does not provide automated failover or a simple way to perform non-disruptive testing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Backup (which is for backup/restore with longer RPO) with Azure Site Recovery (which is for replication and orchestrated failover), overlooking that the question explicitly requires non-disruptive test failovers and strict RPO/RTO, which only ASR can provide.
Detailed technical explanation
How to think about this question
Azure Site Recovery uses continuous replication with a default RPO of 30 seconds for Azure VMs, leveraging change tracking via the Azure Site Recovery Mobility service or native Azure VM replication. Test failovers create isolated copies of VMs in the target region using a separate virtual network, ensuring no impact on production while validating recovery plans. In real-world scenarios, ASR can also handle multi-tier application consistency by using recovery plans with custom scripts and manual actions for precise RTO compliance.
KKey Concepts to Remember
Azure Site Recovery provides continuous replication for VMs.
ASR supports orchestrated failover and failback for disaster recovery.
It allows non-disruptive test failovers for DR drills.
ASR helps meet specific RPO and RTO requirements for applications.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Azure Site Recovery provides continuous replication for VMs.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-305 question in full detail.
Review azure Site Recovery provides continuous replication for VMs., then practise related AZ-305 questions on the same topic to reinforce the concept.
Design business continuity solutions — This question tests Design business continuity solutions — Azure Site Recovery provides continuous replication for VMs..
What is the correct answer to this question?
The correct answer is: Azure Site Recovery — Azure Site Recovery (ASR) orchestrates replication, failover, and failback of Azure VMs to a secondary region, meeting the RPO of 30 minutes (continuous replication with 30-second RPO) and RTO of 1 hour (orchestrated recovery). It supports non-disruptive test failovers via isolated networks, which is essential for quarterly compliance drills without impacting production.
What should I do if I get this AZ-305 question wrong?
Review azure Site Recovery provides continuous replication for VMs., then practise related AZ-305 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Azure Site Recovery provides continuous replication for VMs.
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A retail company runs its e-commerce platform on Azure VMs. The application uses Azure SQL Database. You are designing a business continuity plan. The company wants to minimize recovery time for a regional outage. Which Azure service should you use to replicate the VMs to a secondary region?
easy
A.Azure Traffic Manager
B.Azure Backup
C.Azure Load Balancer
✓ D.Azure Site Recovery
Why D: Option B is correct because Azure Site Recovery is designed for VM replication to a secondary region, providing RTO in minutes. Option A (Azure Backup) is for backup and restore, not replication. Option C (Azure Traffic Manager) is for traffic routing. Option D (Azure Load Balancer) is for distributing traffic within a region.
Last reviewed: Jun 11, 2026
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