DP-300 Plan and implement data platform resources Practice Question
You are migrating a large on-premises SQL Server database (5 TB) to Azure SQL Managed Instance. The network bandwidth between your on-premises data center and Azure is limited to 100 Mbps. You need to minimize the migration time. Which approach should you use?
⚠ Common exam trap
The trap here is that candidates often overestimate the speed of online migration services like DMS or BACPAC, failing to calculate that at 100 Mbps, a 5 TB transfer takes over 5 days, making physical shipping via Data Box the faster choice despite the initial impression that 'online' is always quicker.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Azure Data Box to physically transfer the data.
Azure Data Box is the correct approach because it physically transfers the 5 TB database via a secure storage device, bypassing the 100 Mbps network bottleneck. At 100 Mbps, a 5 TB transfer would take approximately 5.5 days continuously, while Data Box can complete the transfer in a few days including shipping, making it the fastest option for such a large dataset over a limited bandwidth link.
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 Data Box to physically transfer the data.
Why this is correct
Data Box bypasses network limitations.
- ✗
Use transaction log shipping to continuously sync changes.
Why it's wrong here
Log shipping requires stable network and is slow.
- ✗
Export as BACPAC and upload to Azure Blob Storage, then import.
Why it's wrong here
BACPAC export/import is slow over limited bandwidth.
- ✗
Use Azure Database Migration Service (DMS) online migration.
Why it's wrong here
Limited bandwidth makes online migration slow.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Azure SQL Managed Instance
Azure SQL Managed Instance is a fully managed cloud database service that gives you nearly all the features of Microsoft SQL Server on your own server, without you having to manage the hardware or operating system.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.