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 have an Azure SQL Database that uses the General Purpose service tier. The database is critical and you need to ensure that it remains available during a planned patching event that updates the underlying hardware. What does Azure SQL Database provide to maintain availability during such events?
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
✓
Automated failover to a built-in standby replica with minimal downtime.
The General Purpose tier includes built-in high availability with automated failover to a standby replica during planned patching events, minimizing downtime. Option A is incorrect because the database is not taken offline; it fails over seamlessly. Option B is incorrect because manual failover is not required—the process is automatic. Option C is incorrect because General Purpose does not provide zone-redundant replicas by default; that is a feature of the Business Critical or Hyperscale tiers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The database is taken offline during patching and restored afterward.
Why it's wrong here
Azure SQL Database does not take the database offline; it uses failover.
- ✗
You must manually fail over to a secondary database to avoid downtime.
Why it's wrong here
Failover is automatic; no manual intervention is needed.
- ✗
Zone-redundant replicas that ensure zero downtime.
Why it's wrong here
Zone redundancy is optional and not automatically configured for General Purpose.
- ✓
Automated failover to a built-in standby replica with minimal downtime.
Why this is correct
General Purpose tier uses a built-in standby replica for high availability during patching.
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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