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

Which THREE are requirements for configuring a failover group for Azure SQL Managed Instance? (Select three.)

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

Both managed instances must have the same service tier

Options A, B, and E are correct. Both managed instances must have the same service tier (A). The secondary instance must have no user databases (B). Both instances must be in the same hardware generation (e.g., Gen5) (E). Option C is incorrect because the instances can be in different subnets within the same virtual network. Option D is incorrect because having a user database on the primary is not a requirement for configuring a failover group.

Answer analysis

Option-by-option breakdown

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

  • Both managed instances must have the same service tier

    Why this is correct

    Failover groups require matching service tiers (e.g., General Purpose).

  • The secondary instance must have no user databases

    Why this is correct

    The secondary must be empty; failover group will create the replicas.

  • Both instances must be in the same virtual network subnet

    Why it's wrong here

    They can be in different subnets but must be peered.

  • The primary instance must have at least one user database

    Why it's wrong here

    The primary can have databases, but the secondary must be empty.

  • Both instances must be in the same generation (Gen5)

    Why this is correct

    Hardware generation must match.

Visual reference

192.168.1.0 /24 256 addresses (254 usable) 192.168.1.0 /25 Subnet A 128 addr (126 usable) 192.168.1.128 /25 Subnet B 128 addr (126 usable) Borrowing 1 bit from host portion creates 2 subnets (/25)

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JA

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.