The correct answer is encryption over HTTPS/TLS, as Azure Data Factory automatically enforces TLS encryption for all data in transit between its integration runtime and supported data stores like Azure Blob Storage and Azure SQL Database. This ensures that personally identifiable information (PII) copied during pipeline execution is protected from interception or tampering while moving across the network. On the DP-203 exam, this concept tests your understanding of Azure Data Factory’s built-in security controls, often appearing as a distractor question where candidates mistakenly choose at-rest encryption options like Azure Disk Encryption or Storage Service Encryption. A common trap is confusing transit encryption with labeling or disk-level protection, but remember that Data Factory uses HTTPS/TLS by default for all cloud-to-cloud data movement. Memory tip: think “TLS for travel” — if data is moving between endpoints, TLS is the shield.
DP-203 Practice Question: Secure, monitor, and optimize data storage and data processing
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data processing. 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.
You are designing a data pipeline in Azure Data Factory that copies data from Azure Blob Storage to Azure SQL Database. The data contains personally identifiable information (PII). What should you use to protect the data during transit?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Encryption over HTTPS/TLS
Option B is correct because Azure Data Factory always encrypts data in transit using TLS. Option A is wrong because Azure Information Protection is for labeling, not transit encryption. Option C is wrong because Azure Disk Encryption is for at-rest encryption of disks. Option D is wrong because Azure Storage Service Encryption is for at-rest encryption.
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.
✗
Azure Information Protection
Why it's wrong here
Azure Information Protection is for classification and labeling, not for encrypting data in transit.
✓
Encryption over HTTPS/TLS
Why this is correct
Azure Data Factory uses TLS to encrypt data in transit between endpoints.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Disk Encryption
Why it's wrong here
Azure Disk Encryption encrypts disks, not network traffic.
✗
Azure Storage Service Encryption
Why it's wrong here
Azure Storage Service Encryption encrypts data at rest, not in transit.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-203 question in full detail.
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Encryption over HTTPS/TLS — Option B is correct because Azure Data Factory always encrypts data in transit using TLS. Option A is wrong because Azure Information Protection is for labeling, not transit encryption. Option C is wrong because Azure Disk Encryption is for at-rest encryption of disks. Option D is wrong because Azure Storage Service Encryption is for at-rest encryption.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Your team uses Azure Data Factory to copy data from on-premises SQL Server to Azure Blob Storage. You need to ensure that data in transit is encrypted using TLS 1.2. What should you configure?
easy
✓ A.Ensure the Azure Data Factory pipeline uses HTTPS for the copy activity.
B.Set up a site-to-site VPN between the on-premises network and Azure.
C.Configure the on-premises SQL Server to use SSL certificates.
D.Use Azure ExpressRoute with private peering.
Why A: Option A is correct because Azure Data Factory uses HTTPS by default, which enforces TLS encryption for data in transit. Option B is wrong because VPN is not required for TLS encryption. Option C is wrong because Azure ExpressRoute provides a private connection but does not replace TLS. Option D is wrong because configuring the on-premises SQL Server to use SSL certificates is necessary but not sufficient; Azure Data Factory must also use HTTPS.
Last reviewed: Jun 21, 2026
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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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