Plan and configure a high availability and disaster recovery environment →easyMultiple SelectObjective-mapped
DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment
You need to configure high availability for an Azure SQL Database that supports a critical application. The database must be resilient to a single compute node failure. Which TWO options should you consider? (Choose two.)
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
✓
Use the Business Critical service tier.
Options D and E are correct. The Business Critical service tier provides synchronous replicas that automatically failover on node failure, ensuring high availability within a single region. Zone redundancy, when enabled in the Business Critical tier, places replicas across different availability zones, adding resilience to zone-level failures. Option A (Hyperscale read replicas) are for read scaling, not high availability. Option B (active geo-replication) is for disaster recovery across regions, not single node failure. Option C (auto-failover group) is for managing failover of multiple databases, not directly for compute node resilience.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Configure Hyperscale read replicas.
Why it's wrong here
Hyperscale read replicas are for read scale, not HA.
- ✗
Enable active geo-replication.
Why it's wrong here
Geo-replication is for cross-region DR, not node failure.
- ✗
Create an auto-failover group.
Why it's wrong here
Auto-failover groups are for managed instances.
- ✓
Use the Business Critical service tier.
Why this is correct
Business Critical provides automatic failover on node failure.
- ✓
Enable zone redundancy.
Why this is correct
Zone redundancy protects against zone failure.
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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