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 2-TB on-premises SQL Server database to Azure. The database uses SQL Server Agent jobs for scheduled maintenance, relies on linked servers to query data from another SQL Server instance, and requires cross-database queries within the same instance. The company wants a fully managed PaaS service that minimizes application code changes and provides automatic backups and patching. Which Azure SQL service should they choose?
Why wrong: Azure SQL Database does not support SQL Server Agent or linked servers, so it would require significant application changes.
B
Azure SQL Database (Elastic Pool)
Why wrong: Elastic Pools share the same limitations as Single Database regarding SQL Server Agent and linked servers.
C
Azure SQL Managed Instance
Azure SQL Managed Instance provides built-in support for SQL Server Agent, linked servers, and cross-database queries, with automatic backups and patching, while being fully managed PaaS.
D
SQL Server on Azure Virtual Machine
Why wrong: SQL Server on Azure VMs is an IaaS offering; it supports SQL Server Agent and linked servers but requires manual management of backups and patching, not fully managed.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure SQL Managed Instance
Azure SQL Managed Instance is the correct choice because it provides near 100% compatibility with on-premises SQL Server, including support for SQL Server Agent jobs, linked servers, and cross-database queries within the same instance. As a fully managed PaaS service, it offers automatic backups, patching, and high availability while minimizing application code changes, unlike Azure SQL Database which lacks instance-scoped features.
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 SQL Database (Single Database)
Why it's wrong here
Azure SQL Database does not support SQL Server Agent or linked servers, so it would require significant application changes.
✗
Azure SQL Database (Elastic Pool)
Why it's wrong here
Elastic Pools share the same limitations as Single Database regarding SQL Server Agent and linked servers.
✓
Azure SQL Managed Instance
Why this is correct
Azure SQL Managed Instance provides built-in support for SQL Server Agent, linked servers, and cross-database queries, with automatic backups and patching, while being fully managed PaaS.
Related concept
Read the scenario before looking for a memorised answer.
✗
SQL Server on Azure Virtual Machine
Why it's wrong here
SQL Server on Azure VMs is an IaaS offering; it supports SQL Server Agent and linked servers but requires manual management of backups and patching, not fully managed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure SQL Database (which is database-level PaaS) with Azure SQL Managed Instance (which is instance-level PaaS), overlooking that linked servers, Agent jobs, and cross-database queries require instance-scoped functionality not available in Azure SQL Database.
Detailed technical explanation
How to think about this question
Azure SQL Managed Instance runs in a dedicated virtual network and uses a SQL Server Database Engine that is nearly identical to on-premises SQL Server, supporting features like CLR, Service Broker, and Database Mail. Linked servers in Managed Instance use the same T-SQL syntax as on-premises, enabling cross-instance queries via OLE DB or ODBC, while SQL Agent jobs are fully supported for scheduling maintenance tasks. The service automatically handles backups with point-in-time restore (PITR) and applies patching during a configurable maintenance window, reducing operational overhead.
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: Azure SQL Managed Instance — Azure SQL Managed Instance is the correct choice because it provides near 100% compatibility with on-premises SQL Server, including support for SQL Server Agent jobs, linked servers, and cross-database queries within the same instance. As a fully managed PaaS service, it offers automatic backups, patching, and high availability while minimizing application code changes, unlike Azure SQL Database which lacks instance-scoped features.
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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