The correct choice is to initiate a planned failover to the secondary region. This is because active geo-replication in Azure SQL Database supports a graceful, synchronous failover process that first replicates all pending transactions to the secondary database before promoting it, guaranteeing zero data loss even during performance degradation. In contrast, a forced failover would immediately switch roles without waiting for transaction replication, resulting in data loss. On the DP-300 exam, this scenario tests your understanding of the difference between planned and forced failover under the “High Availability and Disaster Recovery” domain, often appearing as a trap where candidates mistakenly choose forced failover to minimize downtime. Remember the key distinction: planned equals zero data loss but requires a brief synchronization window, while forced equals faster recovery but with potential data loss. A simple memory tip is “Plan to protect, force to forget.”
DP-300 Plan and implement data platform resources Practice Question
This DP-300 practice question tests your understanding of plan and implement data platform resources. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Your company has an Azure SQL Database configured with Active Geo-Replication between two regions. The primary database is experiencing performance degradation due to a sudden increase in write-intensive workloads. You need to minimize downtime and ensure no data loss. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Initiate a planned failover to the secondary region
A planned failover (Option D) is correct because Active Geo-Replication supports a graceful, synchronous failover that promotes the secondary database to become the new primary without data loss. This is achieved by first replicating all pending transactions to the secondary, ensuring zero data loss, and then switching roles with minimal downtime. In contrast, a forced failover (Option B) would cause data loss because it does not wait for pending transactions to be replicated.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 read scale-out on the primary database
Why it's wrong here
Read scale-out only redirects read queries, not writes.
✗
Initiate a forced failover to the secondary region
Why it's wrong here
Forced failover may lose unsynchronized data.
✗
Increase the service tier of the primary database
Why it's wrong here
Scaling up may cause a brief outage and does not immediately offload the load.
✓
Initiate a planned failover to the secondary region
Why this is correct
Planned failover synchronizes all data before switching, ensuring zero data loss.
Clue confirmation
The clue words "primary", "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'forced failover' (which causes data loss) with 'planned failover' (which ensures zero data loss), and they overlook that scaling the service tier does not address the need to minimize downtime during an active degradation.
Detailed technical explanation
How to think about this question
Active Geo-Replication in Azure SQL Database uses asynchronous replication by default, but a planned failover forces synchronous replication of all pending log records before the role switch, guaranteeing zero data loss. The failover process updates the database's connection string endpoint to point to the new primary, and applications must handle retry logic for transient errors during the brief cutover. In a real-world scenario, if the primary is overwhelmed by writes, a planned failover can shift the write load to a secondary in a different region, often with a recovery point objective (RPO) of zero and a recovery time objective (RTO) of seconds to minutes.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Plan and implement data platform resources — This question tests Plan and implement data platform resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Initiate a planned failover to the secondary region — A planned failover (Option D) is correct because Active Geo-Replication supports a graceful, synchronous failover that promotes the secondary database to become the new primary without data loss. This is achieved by first replicating all pending transactions to the secondary, ensuring zero data loss, and then switching roles with minimal downtime. In contrast, a forced failover (Option B) would cause data loss because it does not wait for pending transactions to be replicated.
What should I do if I get this DP-300 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "primary", "minimum / minimize". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your company uses Azure SQL Database with Active Geo-Replication for disaster recovery. During a regional outage, you fail over to the secondary region. When the primary region recovers, you need to fail back with zero data loss. What should you do?
hard
A.Delete the secondary database and recreate it from the primary
B.Add a new secondary in the original primary region and then fail over
C.Fail over the original primary to become the primary again
✓ D.Perform a planned failover from the current primary to the original primary
Why D: Option D is correct because a planned failover in Azure SQL Database with Active Geo-Replication ensures zero data loss by synchronizing all committed transactions from the current primary (secondary region) to the original primary before switching roles. This process uses synchronous replication during the final phase, guaranteeing that no transactions are lost when failing back to the recovered primary region.
Last reviewed: Jun 24, 2026
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