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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 application on an Azure virtual machine in the West US region. They want to enable disaster recovery to East US with the ability to perform non-disruptive DR drills. They need an RPO of a few minutes. Which Azure service should they use?
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) is the correct service because it provides continuous replication of Azure VMs from a primary region (West US) to a secondary region (East US) with a Recovery Point Objective (RPO) of a few minutes. It also supports non-disruptive disaster recovery drills by allowing you to perform test failovers in an isolated network without impacting the production workload.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 Site Recovery
Why this is correct
Azure Site Recovery replicates VMs continuously and allows you to run test failovers in isolation for DR drills.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Backup
Why it's wrong here
Azure Backup provides point-in-time backups, not continuous replication, and does not support non-disruptive failover testing.
✗
Azure Traffic Manager
Why it's wrong here
Traffic Manager performs DNS-based traffic routing across regions, not VM replication or failover.
✗
Azure Blueprints
Why it's wrong here
Azure Blueprints is a governance tool for defining repeatable environments, not a disaster recovery solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure Backup (which is for long-term retention) with Azure Site Recovery (which is for replication and failover), leading them to choose Backup for DR scenarios that require low RPO and non-disruptive testing.
Detailed technical explanation
How to think about this question
Azure Site Recovery uses continuous replication at the VM disk level, leveraging change tracking and asynchronous replication to achieve an RPO as low as 30 seconds for Azure-to-Azure scenarios. During a test failover, ASR creates a copy of the replicated VM in an isolated virtual network, allowing validation of recovery plans without affecting production traffic or breaking replication continuity.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
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
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Design business continuity solutions — This question tests Design business continuity solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Site Recovery — Azure Site Recovery (ASR) is the correct service because it provides continuous replication of Azure VMs from a primary region (West US) to a secondary region (East US) with a Recovery Point Objective (RPO) of a few minutes. It also supports non-disruptive disaster recovery drills by allowing you to perform test failovers in an isolated network without impacting the production workload.
What should I do if I get this AZ-305 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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