The answer is to deploy Azure SQL Database in the Business Critical service tier with a zone-redundant configuration. This is the correct choice because Business Critical uses synchronous replication of data across three separate availability zones within the same region, guaranteeing zero data loss (an RPO of 0) and automatic failover in under 30 seconds for zonal outages, which directly satisfies the required RPO of less than 5 seconds and RTO of less than 30 seconds. On the DP-300 exam, this scenario tests your understanding of when to choose zone-redundant versus geo-replication; a common trap is selecting Hyperscale or General Purpose, which offer asynchronous replication and cannot meet such a strict RPO. Remember the key distinction: Business Critical zone redundancy is for high-availability within a region, while geo-replication is for cross-region disaster recovery. Memory tip: think "BC-ZR" for "Business Critical, Zero data loss, Rapid failover."
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.
You are designing a disaster recovery solution for a critical Azure SQL Database that runs in the West US region. The database is 2 TB in size and requires a recovery point objective (RPO) of less than 5 seconds and a recovery time objective (RTO) of less than 30 seconds. Which deployment option should you recommend?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Azure SQL Database Business Critical with zone-redundant configuration
Azure SQL Database Business Critical with zone-redundant configuration is the correct choice because it provides synchronous replication across three availability zones within the same region, ensuring an RPO of 0 (no data loss) and an RTO of under 30 seconds for zonal failures. This meets the strict RPO of less than 5 seconds and RTO of less than 30 seconds for a 2 TB database, as Business Critical offers high-performance local SSD storage and automatic failover without data loss.
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.
✗
Use Azure SQL Database General Purpose with auto-failover group
Why it's wrong here
General Purpose tier has asynchronous replication and RTO of 1 hour.
✗
Use Azure SQL Database Hyperscale with geo-replication
Why it's wrong here
Hyperscale geo-replication provides RPO of up to 5 seconds but RTO is typically 1 hour.
✓
Use Azure SQL Database Business Critical with zone-redundant configuration
Why this is correct
Business Critical with zone redundancy provides synchronous replication across zones, achieving RPO=0 and RTO~30s.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Azure SQL Managed Instance Business Critical with zone-redundant configuration
Why it's wrong here
Azure SQL Managed Instance Business Critical does not support zone redundancy for databases.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Hyperscale's geo-replication with synchronous replication, but Hyperscale uses asynchronous replication with a typical RPO of 5-10 seconds, which does not guarantee the sub-5-second RPO required, while Business Critical zone-redundant provides synchronous replication within the same region.
Detailed technical explanation
How to think about this question
Business Critical tier uses a SQL Server Always On availability group with synchronous replication between three replicas in different availability zones, ensuring zero data loss on zonal failure and automatic failover within seconds. The zone-redundant configuration distributes these replicas across zones within the same region, providing resilience against a full zone outage while maintaining the low-latency, high-throughput local SSD storage required for a 2 TB database. In contrast, Hyperscale uses a distributed architecture with page servers and log-based replication, which introduces asynchronous lag that can exceed 5 seconds under load.
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: Use Azure SQL Database Business Critical with zone-redundant configuration — Azure SQL Database Business Critical with zone-redundant configuration is the correct choice because it provides synchronous replication across three availability zones within the same region, ensuring an RPO of 0 (no data loss) and an RTO of under 30 seconds for zonal failures. This meets the strict RPO of less than 5 seconds and RTO of less than 30 seconds for a 2 TB database, as Business Critical offers high-performance local SSD storage and automatic failover without data loss.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.