DP-300 Practice Question: Plan and configure high availability and disaster recovery
A company has an Azure SQL Managed Instance in the East US region. They need to implement disaster recovery with automatic failover to a paired region. The solution must minimize data loss to less than 5 seconds. Which feature should they use?
⚠ Common exam trap
Many exam-takers confuse Active Geo-Replication (which is for Azure SQL Database, not Managed Instance) with Auto-Failover Groups, leading candidates to select Option A even though it is unsupported for Managed Instance.
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
✓
Configure an Auto-Failover Group with a secondary instance in West US
Auto-Failover Groups for Azure SQL Managed Instance provide automatic failover to a paired region (West US) with a replication lag target of less than 5 seconds when using the Readable Secondary option. This feature uses synchronous replication at the commit level to minimize data loss, meeting the RPO requirement 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.
- ✗
Active Geo-Replication with a secondary in East US 2
Why it's wrong here
Active Geo-Replication is not supported for SQL Managed Instance.
- ✗
Enable geo-redundant backup storage and restore to West US
Why it's wrong here
Geo-restore has RPO of hours, not seconds.
- ✓
Configure an Auto-Failover Group with a secondary instance in West US
Why this is correct
Auto-failover groups for managed instance provide automatic failover and RPO of 5 seconds.
- ✗
Set up a Failover Group with manual failover to a secondary in West US
Why it's wrong here
Manual failover is not automatic.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Azure SQL Managed Instance
Azure SQL Managed Instance is a fully managed cloud database service that gives you nearly all the features of Microsoft SQL Server on your own server, without you having to manage the hardware or operating system.
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