DP-203 Develop data processing Practice Question
You are designing a data processing solution in Azure Databricks. The data is stored in Azure Data Lake Storage Gen2 and you need to perform transformations using Apache Spark. The security requirements mandate that all data in transit must be encrypted and that the storage account must not be accessible from the public internet. What should you configure?
⚠ Common exam trap
Watch out — candidates often confuse service endpoints (which still use public endpoints) with private endpoints (which use private IPs and fully isolate the resource from the internet), leading candidates to pick Option C thinking VNet injection plus service endpoints provides complete public internet isolation.
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
✓
Enable the storage account firewall and add a private endpoint for Azure Databricks to use.
It satisfies both security requirements: encrypting data in transit and preventing public internet access. A private endpoint uses Azure Private Link to connect Azure Databricks to the storage account over the Microsoft backbone network, ensuring all traffic stays within the Azure network and is encrypted via TLS. The storage account firewall is then configured to deny all public traffic, so only the private endpoint can access the storage account, meeting the 'not accessible from the public internet' mandate.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable the storage account firewall and add a private endpoint for Azure Databricks to use.
Why this is correct
Private endpoint ensures private connectivity and encryption in transit.
- ✗
Disable TLS on the storage account and use a shared access signature (SAS) token for authentication.
Why it's wrong here
Disabling TLS violates encryption requirements.
- ✗
Use Azure Databricks with VNet injection and configure a service endpoint for the storage account.
Why it's wrong here
Azure Databricks does not support VNet service endpoints for storage; it requires private endpoints.
- ✗
Configure the storage account to use HTTPS only and enable firewall rules to allow only Azure services.
Why it's wrong here
This still allows access from the public internet via Azure services.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 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-203 exam.