Plan and configure a high availability and disaster recovery environment →easyMultiple ChoiceObjective-mapped
DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment
You are designing a high availability solution for an Azure SQL Database used by a critical application. The application requires no more than 5 seconds of data loss and automatic failover within 1 minute. Which service tier and configuration should you choose?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Business Critical tier with zone redundancy.
Business Critical tier with zone redundancy provides automatic failover within seconds and zero data loss, meeting the RPO of 5 seconds and RTO of 1 minute. Option A is incorrect because Hyperscale tier with geo-replication and auto-failover group typically has a higher RTO (often up to 1 hour) and RPO may exceed 5 seconds. Option B is incorrect because Hyperscale tier with zone redundancy does not provide automatic failover on its own; it only offers local resilience. Option C is incorrect because General Purpose tier with active geo-replication has a higher RTO (up to 1 hour) and does not guarantee an RPO of 5 seconds.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Hyperscale tier with geo-replication and auto-failover group.
Why it's wrong here
Auto-failover groups are not supported for Hyperscale.
- ✗
Hyperscale tier with zone redundancy.
Why it's wrong here
Zone redundancy provides availability within region, not automatic failover across regions.
- ✗
General Purpose tier with active geo-replication.
Why it's wrong here
General Purpose has asynchronous replication, RPO > 5 seconds.
- ✓
Business Critical tier with zone redundancy.
Why this is correct
Zone redundancy provides automatic failover within region with zero data loss.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Azure SQL Performance Tuning
Azure SQL Performance Tuning is the process of optimizing the speed and efficiency of queries and database operations in Microsoft Azure SQL Database or SQL Managed Instance to reduce latency and improve throughput.
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