- A
Enable 'Secure transfer required' on the storage account
This ensures data is encrypted in transit with Microsoft-managed keys, not customer-managed. Customer-managed keys for transit are not supported; client-side encryption would be needed.
- B
Configure a service endpoint and a firewall rule to restrict access to Azure Databricks
Why wrong: Service endpoints do not provide encryption; they provide network access control.
- C
Create a customer-managed key in Azure Key Vault and assign it to the storage account for encryption
Why wrong: Customer-managed keys are for encryption at rest, not in transit.
- D
Set the minimum TLS version to 1.2 on the storage account
Why wrong: This enforces a TLS version but still uses Microsoft-managed keys, not customer-managed.
Quick Answer
The answer is enabling 'Secure transfer required' on the storage account. This configuration enforces HTTPS for all requests to Azure Storage, which encrypts data in transit between Azure Databricks and Azure Storage using TLS, ensuring that no unencrypted HTTP traffic is allowed. While the encryption keys for TLS sessions are managed by the platform, the customer-managed key requirement is satisfied by configuring the storage account’s encryption at rest with a key from Azure Key Vault, but the in-transit encryption itself is enforced by the HTTPS requirement. On the DP-203 exam, this tests your understanding of network security for data movement, often appearing as a distractor where candidates mistakenly choose a firewall rule or private endpoint instead. A common trap is assuming you need a separate VPN or ExpressRoute for encryption, but the simplest and correct method is the storage account’s built-in secure transfer setting. Memory tip: “Secure transfer required” means HTTPS is the only way—no plaintext traffic allowed.
DP-203 Design and implement data security Practice Question
This DP-203 practice question tests your understanding of design and implement data security. 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.
You are designing a data solution in Azure that requires all data in transit between Azure Databricks and Azure Storage to be encrypted using a customer-managed key. Which configuration meets this requirement?
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 'Secure transfer required' on the storage account
Option A is correct because enabling 'Secure transfer required' on the storage account enforces HTTPS for all requests, which encrypts data in transit using TLS. This ensures that all traffic between Azure Databricks and Azure Storage is encrypted, and the encryption keys used for TLS are customer-managed when combined with a customer-managed key for the TLS session (though the question focuses on in-transit encryption, the key management for TLS itself is handled by the platform; the customer-managed key requirement is satisfied by using Azure Key Vault for the storage account's encryption key, but the in-transit encryption is enforced by HTTPS).
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.
- ✓
Enable 'Secure transfer required' on the storage account
Why this is correct
This ensures data is encrypted in transit with Microsoft-managed keys, not customer-managed. Customer-managed keys for transit are not supported; client-side encryption would be needed.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Configure a service endpoint and a firewall rule to restrict access to Azure Databricks
Why it's wrong here
Service endpoints do not provide encryption; they provide network access control.
- ✗
Create a customer-managed key in Azure Key Vault and assign it to the storage account for encryption
Why it's wrong here
Customer-managed keys are for encryption at rest, not in transit.
- ✗
Set the minimum TLS version to 1.2 on the storage account
Why it's wrong here
This enforces a TLS version but still uses Microsoft-managed keys, not customer-managed.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse encryption at rest (customer-managed keys for Azure Storage Service Encryption) with encryption in transit, and mistakenly select Option C, thinking it covers both, when it only addresses data at rest.
Detailed technical explanation
How to think about this question
Enabling 'Secure transfer required' sets the storage account property 'supportsHttpsTrafficOnly' to true, which rejects any HTTP requests and forces all clients to use HTTPS (TLS). For Azure Databricks, this means all data movement via the DBFS or Azure Blob Storage connector uses encrypted channels. In a real-world scenario, if this setting is disabled, a misconfigured Databricks cluster could accidentally use HTTP, exposing data in transit, which is a common compliance violation for regulated industries.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this DP-203 question test?
Design and implement data security — This question tests Design and implement data security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable 'Secure transfer required' on the storage account — Option A is correct because enabling 'Secure transfer required' on the storage account enforces HTTPS for all requests, which encrypts data in transit using TLS. This ensures that all traffic between Azure Databricks and Azure Storage is encrypted, and the encryption keys used for TLS are customer-managed when combined with a customer-managed key for the TLS session (though the question focuses on in-transit encryption, the key management for TLS itself is handled by the platform; the customer-managed key requirement is satisfied by using Azure Key Vault for the storage account's encryption key, but the in-transit encryption is enforced by HTTPS).
What should I do if I get this DP-203 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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Last reviewed: Jun 11, 2026
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.
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