Plan and configure a high availability and disaster recovery environment →hardMultiple SelectObjective-mapped
DP-300 Practice Question: Plan and configure a high availability and disaster recovery environment
You have an Azure SQL Database in the Business Critical tier with zone redundancy enabled. You need to maintain high availability during a planned patching event. Which THREE actions should you take? (Choose 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
✓
Verify that zone redundancy is enabled on the database.
To maintain high availability during a planned patching event on a Business Critical tier with zone redundancy enabled, you should first verify that zone redundancy is enabled (B) to confirm the configuration. Perform a planned failover test (D) to ensure the failover mechanism works correctly. Ensure the database has a read-scale replica configured (E) to offload read workloads and maintain performance. Option A (enable active geo-replication) is not required for high availability during patching; it is for disaster recovery. Option C (scale to lower tier) would reduce availability and is unnecessary.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Enable active geo-replication to a secondary region.
Why it's wrong here
Active geo-replication is for disaster recovery, not for maintaining high availability during planned patching.
- ✓
Verify that zone redundancy is enabled on the database.
Why this is correct
Verifying zone redundancy ensures the database is configured to survive patching within the same region.
- ✗
Scale the database to a lower tier to reduce cost.
Why it's wrong here
Scaling to a lower tier reduces performance and high availability capabilities, which is not needed.
- ✓
Perform a planned failover test.
Why this is correct
A planned failover test validates that the zone-redundant configuration can handle a failover without data loss.
- ✓
Ensure the database has a read-scale replica configured.
Why this is correct
A read-scale replica provides an additional endpoint that can be used for reads, offloading the primary 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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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.