The correct choice is Azure SQL Database in the Business Critical tier with zone redundancy. This deployment option delivers a 99.99% SLA and automatic failover by maintaining multiple synchronous replicas across Azure availability zones, ensuring that if one zone fails, another replica takes over instantly without data loss. Automated backups are built into the platform, meeting both the high availability and backup requirements without extra configuration. On the DP-900 exam, this question tests your understanding of how service tiers map to reliability guarantees—a common trap is assuming Azure SQL Managed Instance offers zone redundancy by default, which it does not, or thinking SQL Server on Azure VM provides the same SLA without manual setup. Remember the memory tip: “Business Critical with zones means four nines and no downtime groans.”
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. 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 team is migrating an on-premises SQL Server database to Azure. The database is used by a critical application that requires high availability and automatic failover. You need to choose a deployment option that provides a 99.99% SLA and supports automated backups. What should you use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure SQL Database (Business Critical tier with zone redundancy)
Option C is correct because Azure SQL Database in a Business Critical service tier with zone redundancy provides high availability and automated backups. Option A (Azure SQL Managed Instance) does not offer zone redundancy by default. Option B (SQL Server on Azure VM) requires manual configuration for high availability. Option D (Azure Database for PostgreSQL) is a different database engine.
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.
✗
Azure Database for PostgreSQL
Why it's wrong here
PostgreSQL is not SQL Server; migration would require schema changes.
✓
Azure SQL Database (Business Critical tier with zone redundancy)
Why this is correct
Business Critical tier with zone redundancy offers 99.99% SLA and automated backups.
Related concept
Read the scenario before looking for a memorised answer.
✗
SQL Server on Azure Virtual Machines
Why it's wrong here
Requires manual setup of Always On Availability Groups for high availability; not fully managed.
✗
Azure SQL Managed Instance
Why it's wrong here
Managed Instance does not support zone redundancy for high availability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-900 question in full detail.
Identify which DP-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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: Azure SQL Database (Business Critical tier with zone redundancy) — Option C is correct because Azure SQL Database in a Business Critical service tier with zone redundancy provides high availability and automated backups. Option A (Azure SQL Managed Instance) does not offer zone redundancy by default. Option B (SQL Server on Azure VM) requires manual configuration for high availability. Option D (Azure Database for PostgreSQL) is a different database engine.
What should I do if I get this DP-900 question wrong?
Identify which DP-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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