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 company is migrating an on-premises SQL Server database to Azure SQL Managed Instance. The database is 2 TB in size and has multiple logins, jobs, and SQL Server Agent alerts. You need to choose a migration method that minimizes downtime and preserves all server-level objects. Which approach 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 with online migration
Azure Database Migration Service (DMS) with online migration is the correct choice because it supports minimal downtime by continuously synchronizing changes from the source SQL Server to the target Azure SQL Managed Instance until cutover. It also automatically migrates server-level objects such as logins, jobs, and SQL Server Agent alerts, which are critical for preserving the full environment. This method is designed for large databases (2 TB) and provides a managed, resilient migration pipeline.
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.
✗
Export to BACPAC and import to Managed Instance
Why it's wrong here
BACPAC does not include logins or SQL Agent objects.
✓
Use Azure Database Migration Service with online migration
Why this is correct
DMS online migration minimizes downtime and can migrate server-level objects.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use transactional replication
Why it's wrong here
Replication does not migrate server-level objects and requires setup.
✗
Back up to URL and restore to Managed Instance
Why it's wrong here
restore does not include server-level objects.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume backup/restore (Option D) is sufficient for a full migration, overlooking that server-level objects like logins and jobs are not included in the backup file and must be migrated separately, leading to incomplete environment preservation.
Detailed technical explanation
How to think about this question
Azure DMS online migration uses a continuous data synchronization mechanism based on change tracking or log shipping, allowing the source database to remain operational during migration. Under the hood, DMS leverages the Azure Data Migration Service engine to capture and apply incremental changes, and at cutover, it applies a final sync to minimize downtime to seconds. In real-world scenarios, this approach is essential for large databases (e.g., 2 TB) where traditional backup/restore would cause hours of downtime, and it automatically handles the migration of SQL Agent jobs and logins by querying system tables (e.g., sys.server_principals, sysjobs) and recreating them on the 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 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 Database Migration Service with online migration — Azure Database Migration Service (DMS) with online migration is the correct choice because it supports minimal downtime by continuously synchronizing changes from the source SQL Server to the target Azure SQL Managed Instance until cutover. It also automatically migrates server-level objects such as logins, jobs, and SQL Server Agent alerts, which are critical for preserving the full environment. This method is designed for large databases (2 TB) and provides a managed, resilient migration pipeline.
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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