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. 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.
Your team is migrating an on-premises SQL Server 2019 database to Azure SQL Managed Instance. The database uses Service Broker for cross-database messaging. The compliance requirement mandates that the migration must be performed with minimal downtime and that the target must support the Service Broker feature. What migration strategy 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 Database Migration Service (DMS) with online migration to Azure SQL Managed Instance
Option D is correct because Azure SQL Managed Instance fully supports Service Broker, and the Azure Database Migration Service (DMS) with online migration mode enables minimal downtime by continuously replicating changes from the source SQL Server to the target Managed Instance until a cutover. This satisfies both the Service Broker feature requirement and the compliance mandate for minimal downtime.
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.
✗
Perform a native backup and restore to Azure SQL Managed Instance
Why it's wrong here
Backup and restore may not be minimal downtime.
✗
Use the Data Migration Assistant (DMA) to migrate to Azure SQL Database
Why it's wrong here
DMA only assesses and does not perform the migration.
✗
Use Azure Database Migration Service (DMS) with offline migration to Azure SQL Database
Why it's wrong here
Azure SQL Database does not support Service Broker.
✓
Use Azure Database Migration Service (DMS) with online migration to Azure SQL Managed Instance
Why this is correct
Azure SQL Managed Instance supports Service Broker and online migration minimizes downtime.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse Azure SQL Database with Azure SQL Managed Instance regarding Service Broker support, or assume that any offline migration method can achieve minimal downtime, but the key differentiator is that only online migration to SQL Managed Instance meets both the feature and downtime requirements.
Detailed technical explanation
How to think about this question
Azure Database Migration Service online migration leverages the transactional replication log reader to capture changes from the source SQL Server transaction log and apply them to the target Azure SQL Managed Instance, ensuring near-zero downtime during the migration. Service Broker in SQL Server relies on the sys.transmission_queue and dialog security, which are fully preserved in SQL Managed Instance, unlike Azure SQL Database where cross-database Service Broker conversations are not supported. In a real-world scenario, if the source database uses Service Broker for asynchronous messaging between databases (e.g., for inventory updates), migrating to Azure SQL Database would break that functionality, making SQL Managed Instance the only viable PaaS target.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 Database Migration Service (DMS) with online migration to Azure SQL Managed Instance — Option D is correct because Azure SQL Managed Instance fully supports Service Broker, and the Azure Database Migration Service (DMS) with online migration mode enables minimal downtime by continuously replicating changes from the source SQL Server to the target Managed Instance until a cutover. This satisfies both the Service Broker feature requirement and the compliance mandate for minimal downtime.
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.
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Question Discussion
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