The answer is to deploy a secondary instance in a different region and configure a failover group. This directly solves the RTO problem because failover groups enable automatic, continuous replication of data to a secondary region, allowing you to initiate a manual or automatic failover that completes in minutes rather than the hours required by geo-restore from RA-GRS backups. On the DP-300 exam, this scenario tests your understanding that failover groups are the correct mechanism for meeting strict RTOs during regional disasters, while geo-restore is only suitable for less demanding recovery time objectives. A common trap is confusing zone redundancy—which protects only within a single region—with regional failover, or assuming scaling up or changing backup policies can speed up geo-restore. Remember the key distinction: geo-restore is for RTOs measured in hours, while failover groups achieve RTOs in minutes.
DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment
This DP-300 practice question tests your understanding of plan and configure a high availability and disaster recovery environment. 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.
Your company runs a critical application on Azure SQL Managed Instance in the North Europe region. The application requires an RPO of 5 minutes and an RTO of 2 hours during a regional disaster. The current setup uses a single instance with geo-redundant backup storage (RA-GRS). During a disaster recovery planning session, you discover that geo-restore from RA-GRS backups takes approximately 4 hours to complete, which exceeds the RTO. You need to modify the disaster recovery solution to meet the RTO without exceeding the budget significantly. The solution must minimize administrative overhead. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Deploy a secondary instance in a different region and configure a failover group.
Option C is correct because configuring a failover group between two instances in different regions provides fast failover (RTO minutes) and meets the RTO. Option A is wrong because scaling up doesn't reduce geo-restore time. Option B is wrong because zone redundancy doesn't protect against regional failure. Option D is wrong because it changes backup policy, not failover speed.
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.
✗
Change backup storage to locally-redundant (LRS) and rely on point-in-time restore.
Why it's wrong here
Doesn't provide cross-region DR.
✗
Enable zone redundancy on the primary instance.
Why it's wrong here
Only protects within region.
✓
Deploy a secondary instance in a different region and configure a failover group.
Why this is correct
Enables fast failover.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Scale the instance to a higher service tier to improve restore performance.
Why it's wrong here
Geo-restore time depends on backup size, not tier.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 DP-300 question in full detail.
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Plan and configure a high availability and disaster recovery environment — This question tests Plan and configure a high availability and disaster recovery environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Deploy a secondary instance in a different region and configure a failover group. — Option C is correct because configuring a failover group between two instances in different regions provides fast failover (RTO minutes) and meets the RTO. Option A is wrong because scaling up doesn't reduce geo-restore time. Option B is wrong because zone redundancy doesn't protect against regional failure. Option D is wrong because it changes backup policy, not failover speed.
What should I do if I get this DP-300 question wrong?
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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