- A
General Purpose
Why wrong: General Purpose provides balanced compute and storage but has a higher RPO (up to 1 hour) and does not guarantee sub-5-second RPO or sub-30-minute RTO.
- B
Business Critical
Business Critical uses multiple synchronous replicas to achieve low latency, an RPO of less than 5 seconds, and an RTO of approximately 30 minutes, meeting the requirements.
- C
Hyperscale
Why wrong: Hyperscale is designed for databases larger than 4 TB and offers fast scaling but has a slightly higher RPO (typically up to 1 minute) and is not primarily focused on the aggressive RPO/RTO needed here.
- D
Serverless (General Purpose)
Why wrong: Serverless is a compute tier within General Purpose that auto-pauses, but it inherits General Purpose's RPO/RTO, which does not meet the sub-5-second RPO requirement.
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 is migrating a 500 GB financial database to Azure. The database requires low read/write latency, supports a high number of concurrent transactions, and must have a Recovery Point Objective (RPO) of less than 5 seconds and a Recovery Time Objective (RTO) of less than 30 minutes. The company is willing to pay more for these guarantees. Which Azure SQL Database service tier should they choose?
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
Business Critical
Business Critical is the correct choice because it provides the lowest read/write latency through always-on secondary replicas and uses local SSD storage, which is essential for high-concurrency transactional workloads. It also guarantees an RPO of less than 5 seconds via synchronous data replication and an RTO of under 30 minutes, meeting the strict recovery requirements.
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.
- ✗
General Purpose
Why it's wrong here
General Purpose provides balanced compute and storage but has a higher RPO (up to 1 hour) and does not guarantee sub-5-second RPO or sub-30-minute RTO.
- ✓
Business Critical
Why this is correct
Business Critical uses multiple synchronous replicas to achieve low latency, an RPO of less than 5 seconds, and an RTO of approximately 30 minutes, meeting the requirements.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Hyperscale
Why it's wrong here
Hyperscale is designed for databases larger than 4 TB and offers fast scaling but has a slightly higher RPO (typically up to 1 minute) and is not primarily focused on the aggressive RPO/RTO needed here.
- ✗
Serverless (General Purpose)
Why it's wrong here
Serverless is a compute tier within General Purpose that auto-pauses, but it inherits General Purpose's RPO/RTO, which does not meet the sub-5-second RPO requirement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose Hyperscale because it supports large databases and fast scaling, but they overlook that its RPO is not as tight as Business Critical's synchronous replication, and its read/write latency can be higher due to the page server architecture.
Detailed technical explanation
How to think about this question
Business Critical achieves its low RPO by using Always On Availability Groups with synchronous data replication to three secondary replicas, ensuring no data loss on failover. The local SSD storage provides single-digit millisecond I/O latency, critical for high-concurrency OLTP workloads like financial databases. In a real-world scenario, a failover in Business Critical completes in under 30 seconds, well within the 30-minute RTO, whereas General Purpose relies on geo-replicated page blobs with asynchronous replication, which can lag by 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.
What to study next
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FAQ
Questions learners often ask
What does this DP-900 question test?
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: Business Critical — Business Critical is the correct choice because it provides the lowest read/write latency through always-on secondary replicas and uses local SSD storage, which is essential for high-concurrency transactional workloads. It also guarantees an RPO of less than 5 seconds via synchronous data replication and an RTO of under 30 minutes, meeting the strict recovery requirements.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This DP-900 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-900 exam.
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