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DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment

Your company has an Azure SQL Managed Instance in the UK South region. You need to implement a disaster recovery solution that provides automatic failover to a secondary region and allows read-only workloads to use the secondary replica. The solution must minimize data loss. What should you configure?

⚠ Common exam trap

Option C is tempting because it appears to describe the same solution as A, but it omits the critical step of deploying the second managed instance. The question asks what to configure; you must first deploy the secondary instance before configuring the failover group.

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

Deploy a second managed instance and use auto-failover groups

For Azure SQL Managed Instance, failover groups provide automatic failover to a secondary region and allow read-only workloads to use the secondary replica, minimizing data loss. Option B is incorrect because availability groups are not supported for Azure SQL Managed Instance; they are for SQL Server on Azure VMs. Option C is essentially the same as A but less precise; the standard solution is to deploy a second managed instance in the secondary region and configure a failover group. Option D is incorrect because active geo-replication is a feature of Azure SQL Database, not Azure SQL Managed Instance.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Deploy a second managed instance and use auto-failover groups

    Why this is correct

    Failover groups for Managed Instance provide automatic failover and readable secondary.

  • Create an availability group in the secondary region and configure automatic failover

    Why it's wrong here

    Availability groups are for SQL Server on Azure VMs, not for Azure SQL Managed Instance.

  • Configure a failover group between two managed instances

    Why it's wrong here

    It assumes the second managed instance already exists. The correct implementation requires first deploying a second managed instance in the secondary region, then configuring a failover group (auto-failover groups). Option A explicitly includes both steps.

  • Enable active geo-replication and configure auto-failover using PowerShell

    Why it's wrong here

    Active geo-replication is for Azure SQL Database, not for Managed Instance.

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