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

You have an Azure SQL Managed Instance configured with failover groups to a secondary region. During a disaster, you perform a planned failover to the secondary region. After the primary region recovers, you want to fail back. What should you do first?

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

Perform a planned failover from the current primary to the original primary.

After a planned failover to a secondary region, the secondary region becomes the primary. To fail back to the original primary region, you perform another planned failover from the current primary (the former secondary) to the original primary. This is the only way to switch roles back without data loss. Option B correctly identifies this process. Option A is wrong because you cannot add a new secondary replica while failover groups are already in place; failover groups manage replicas. Option C is wrong because geo-replication is not used with managed instance failover groups; failover groups handle replication. Option D is wrong because you cannot directly configure the original primary as a secondary; you must perform a failover.

Answer analysis

Option-by-option breakdown

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

  • Add a new secondary replica in the original region.

    Why it's wrong here

    Need to fail over first.

  • Perform a planned failover from the current primary to the original primary.

    Why this is correct

    This re-establishes replication and fails back.

  • Start geo-replication from the current primary to the original region.

    Why it's wrong here

    Failover group handles replication.

  • Configure the original primary as a secondary replica.

    Why it's wrong here

    Cannot directly set as secondary; must fail over.

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Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This DP-300 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DP-300 exam.