The correct answer is to configure active geo-replication to a secondary server in West US and implement application-level failover logic. Active geo-replication is the only Azure SQL Database feature that provides a readable secondary in a different region, allowing you to offload read-only queries to the secondary during normal operations while maintaining the ability to trigger a manual or application-driven failover. On the DP-300 exam, this question tests your ability to distinguish between high-availability options: auto-failover groups are often a trap because they require the secondary to be in the same region for readable secondaries, while read scale-out is limited to a single region, and geo-restore is a disaster recovery tool, not a continuous read replica. A common memory tip is to remember that “geo” means different region and “active” means readable—so active geo-replication is your cross-region, readable secondary solution.
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. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 global e-commerce application using Azure SQL Database in the West Europe region. You need to implement a solution that provides automatic failover and allows the secondary region to be used for read-only queries during normal operations. The secondary must be in a different region. Which configuration meets these requirements?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Configure active geo-replication to a secondary server in West US and implement application-level failover logic.
Option D is correct because active geo-replication allows a readable secondary in a different region, and application-level failover can be automated. Option A is wrong because auto-failover groups with a secondary in the same region cannot be used for cross-region read-only queries. Option B is wrong because read scale-out only works within the same region. Option C is wrong because geo-restore is not for continuous read access.
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.
✗
Enable read scale-out on the primary database.
Why it's wrong here
Read scale-out only uses local replicas, not cross-region.
✗
Create an auto-failover group with a secondary in West US and use the secondary as readable.
Why it's wrong here
Auto-failover group secondaries are not readable in cross-region scenarios.
✓
Configure active geo-replication to a secondary server in West US and implement application-level failover logic.
Why this is correct
Active geo-replication provides a readable secondary in a different region and supports application-level failover.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure geo-restore with a recovery point objective of 1 hour.
Why it's wrong here
Geo-restore is not for continuous read access.
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.
Trap categories for this question
Scenario analysis trap
Auto-failover group secondaries are not readable in cross-region scenarios.
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: Configure active geo-replication to a secondary server in West US and implement application-level failover logic. — Option D is correct because active geo-replication allows a readable secondary in a different region, and application-level failover can be automated. Option A is wrong because auto-failover groups with a secondary in the same region cannot be used for cross-region read-only queries. Option B is wrong because read scale-out only works within the same region. Option C is wrong because geo-restore is not for continuous read access.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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