The answer is forced failover. This is the correct action because forced failover immediately promotes the secondary database to primary without waiting for synchronization, which is essential during a complete primary region outage when the primary is unreachable. It minimizes data loss by accepting any unsynchronized data at the secondary, prioritizing availability over consistency—a key distinction from planned failover, which requires synchronous data transfer and fails if the primary is down. On the Microsoft Azure Solutions Architect Expert AZ-305 exam, this scenario tests your understanding of disaster recovery patterns for Azure SQL Database, specifically the trade-off between data loss and recovery time under active geo-replication. A common trap is choosing planned failover, which only works when both regions are healthy and you need zero data loss. Remember the mnemonic: “When the primary is dead, forced failover gets you ahead.”
AZ-305 Design business continuity solutions Practice Question
This AZ-305 practice question tests your understanding of design business continuity solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A company runs an Azure SQL Database with active geo-replication configured to a secondary region. The primary region experiences a complete outage. The company needs to promote the secondary database to become the new primary with minimal data loss. Which action should they take?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Forced failover
Forced failover is the correct action because it immediately promotes the secondary database to primary without waiting for synchronization, which is necessary during a complete primary region outage. This option minimizes data loss by accepting any unsynchronized data at the secondary, prioritizing availability over consistency. In contrast, planned failover requires synchronous data transfer and fails if the primary is unreachable.
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.
✓
Forced failover
Why this is correct
Correct. Forced failover transitions the secondary to primary, acknowledging possible data loss.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Planned failover
Why it's wrong here
Planned failover synchronizes data before switching and is intended for planned maintenance, not outages.
✗
Enable geo-replication
Why it's wrong here
Enable geo-replication initiates replication; it does not perform a failover.
✗
Failover
Why it's wrong here
The Azure portal and CLI use 'Forced Failover' to distinguish from planned; 'Failover' alone is ambiguous.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'Failover' (which in Azure SQL Database can mean either planned or forced depending on context) with the specific 'Forced failover' action required during a disaster, leading them to select the ambiguous 'Failover' option instead.
Detailed technical explanation
How to think about this question
Active geo-replication uses asynchronous replication, so the secondary may lag behind the primary by up to several seconds. During a forced failover, Azure SQL Database automatically truncates any unsynchronized transactions, resulting in potential data loss of up to the replication lag (RPO of 5 seconds or less under normal conditions). The failover group feature in Azure SQL Database also supports a 'forced failover' option that performs the same promotion with data loss, which is the correct choice when the primary is completely unavailable.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-305 question in full detail.
Design business continuity solutions — This question tests Design business continuity solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Forced failover — Forced failover is the correct action because it immediately promotes the secondary database to primary without waiting for synchronization, which is necessary during a complete primary region outage. This option minimizes data loss by accepting any unsynchronized data at the secondary, prioritizing availability over consistency. In contrast, planned failover requires synchronous data transfer and fails if the primary is unreachable.
What should I do if I get this AZ-305 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". 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.
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