DP-900 Practice Question: Identify considerations for relational data on Azure
This DP-900 practice question tests your understanding of identify considerations for relational data on azure. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 a critical OLTP application on a single Azure SQL Database in the West US region. They need to ensure high availability with automatic failover to a secondary region in case of a regional outage. The solution must minimize data loss and allow the secondary database to be readable for reporting queries when the primary is healthy. Which feature should they enable?
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.
Correct. Failover groups provide geo-replication with a readable secondary and can be configured for automatic failover, meeting all requirements.
B
Transparent Data Encryption (TDE)
Why wrong: TDE encrypts the database at rest. It does not provide high availability or geo-replication.
C
Long-term backup retention (LTR)
Why wrong: LTR keeps backups for up to 10 years for compliance, but does not provide automatic failover or a readable secondary.
D
Auto-tuning
Why wrong: Auto-tuning helps optimize query performance by adjusting indexes and query plans. It does not address regional failover or high availability.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Failover groups with automatic failover policy
Failover groups with an automatic failover policy enable Azure SQL Database to replicate data synchronously to a secondary region, ensuring zero data loss during a planned failover and minimal data loss during an unplanned failover. The secondary database is readable for reporting queries when the primary is healthy, meeting both the high availability and read-scale requirements. This feature is specifically designed for cross-region disaster recovery with automatic failover, unlike other options that address security, backup retention, or performance tuning.
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.
✓
Failover groups with automatic failover policy
Why this is correct
Correct. Failover groups provide geo-replication with a readable secondary and can be configured for automatic failover, meeting all requirements.
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.
✗
Transparent Data Encryption (TDE)
Why it's wrong here
TDE encrypts the database at rest. It does not provide high availability or geo-replication.
✗
Long-term backup retention (LTR)
Why it's wrong here
LTR keeps backups for up to 10 years for compliance, but does not provide automatic failover or a readable secondary.
✗
Auto-tuning
Why it's wrong here
Auto-tuning helps optimize query performance by adjusting indexes and query plans. It does not address regional failover or high availability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse high-availability features within a single region (like zone-redundant configuration) with cross-region disaster recovery, or assume that backup retention or encryption can provide failover capabilities.
Detailed technical explanation
How to think about this question
Failover groups use the Availability Zones or paired regions model with synchronous replication at the primary region and asynchronous replication to the secondary region, with a configurable grace period (typically 1 hour) before automatic failover triggers. The secondary database is a fully functional readable replica that can serve reporting workloads without impacting the primary, and during failover, the DNS CNAME record is updated to point to the new primary, ensuring application connectivity with minimal disruption.
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 DP-900 question in full detail.
Identify considerations for relational data on Azure — This question tests Identify considerations for relational data on Azure — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Failover groups with automatic failover policy — Failover groups with an automatic failover policy enable Azure SQL Database to replicate data synchronously to a secondary region, ensuring zero data loss during a planned failover and minimal data loss during an unplanned failover. The secondary database is readable for reporting queries when the primary is healthy, meeting both the high availability and read-scale requirements. This feature is specifically designed for cross-region disaster recovery with automatic failover, unlike other options that address security, backup retention, or performance tuning.
What should I do if I get this DP-900 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.
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