The purpose of this configuration is to enable automated backups of the Azure SQL Managed Instance to Azure Blob Storage, ensuring full, differential, and transaction log backups are scheduled and retained without manual intervention. This is correct because managed backup automates the entire backup lifecycle, offloading the administrative burden of backup scheduling and storage management to the Azure platform, with backups stored durably in geo-redundant Blob Storage for point-in-time restore capabilities. On the DP-300 exam, this concept tests your understanding of how managed backup differs from manual backup strategies—a common trap is confusing it with backup retention policies or long-term retention (LTR), which are separate configurations. The exam often presents an exhibit showing backup settings and asks you to identify the core purpose, not the retention duration. Memory tip: think “M.A.B.”—Managed backup Automates Backups to Blob, meaning you set it and forget it for restore readiness.
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. 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.
Exhibit
Refer to the exhibit.
```json
{
"properties": {
"storageAccountUri": "https://mystorageaccount.blob.core.windows.net/backups",
"retentionDays": 30,
"storageAccountAccessKey": "..."
}
}
```
You are configuring managed backup for an Azure SQL Managed Instance as shown in the exhibit. What is the purpose of this configuration?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
To configure automated backups of the managed instance to Azure Blob Storage.
The configuration shown in the exhibit is for managed backup, which automatically schedules and stores full, differential, and transaction log backups of the Azure SQL Managed Instance to Azure Blob Storage. This ensures that backups are retained and available for restore operations without manual intervention, fulfilling the core purpose of automated backups to Azure Blob Storage.
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.
✗
To enable geo-replication for the managed instance.
Why it's wrong here
Geo-replication is configured separately.
✓
To configure automated backups of the managed instance to Azure Blob Storage.
Why this is correct
Managed backup stores backups in Azure Blob Storage.
Related concept
Read the scenario before looking for a memorised answer.
✗
To set up disaster recovery across Azure regions.
Why it's wrong here
This is for backup storage, not disaster recovery.
✗
To configure point-in-time restore for the managed instance.
Why it's wrong here
Point-in-time restore is enabled by automated backups.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the purpose of configuring automated backups (which creates the backup chain) with the point-in-time restore feature (which uses that chain), leading them to select Option D instead of the correct Option B.
Detailed technical explanation
How to think about this question
Managed backup uses the SQL Server Backup to URL feature, which writes backup files directly to Azure page blobs using the REST API. The retention period is defined in days, and the system automatically manages the backup schedule, including transaction log backups every 5-10 minutes to enable point-in-time restore within the retention window. A subtle behavior is that managed backup does not support custom backup schedules or manual backup file management; all backups are handled automatically by the Azure SQL Managed Instance service.
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: To configure automated backups of the managed instance to Azure Blob Storage. — The configuration shown in the exhibit is for managed backup, which automatically schedules and stores full, differential, and transaction log backups of the Azure SQL Managed Instance to Azure Blob Storage. This ensures that backups are retained and available for restore operations without manual intervention, fulfilling the core purpose of automated backups to Azure Blob Storage.
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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