The answer is a TLS version mismatch, specifically that the self-hosted integration runtime is using TLS 1.0, which is no longer supported by Azure SQL Database or Azure Blob Storage. This error occurs because the SHIR attempts a handshake with an outdated protocol, and the Azure services reject it, causing the 'Could not create SSL/TLS secure channel' failure. On the DP-203 exam, this scenario tests your understanding of how self-hosted integration runtime TLS version settings interact with Azure service minimum security requirements, often appearing as a tricky intermittent failure that seems like a network issue. A common trap is to blame firewall rules or region latency, but the intermittent nature points to a protocol negotiation problem. Remember the memory tip: "TLS 1.0 is a no-go for Azure SQL and Blob—always set your SHIR to 1.2 for a secure handshake."
DP-203 Develop data processing Practice Question
This DP-203 practice question tests your understanding of develop data processing. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 troubleshooting a data processing job in Azure Synapse Pipelines that fails intermittently with the error: 'Operation on target Sink failed: The request was aborted: Could not create SSL/TLS secure channel.' The pipeline reads from Azure Blob Storage and writes to an Azure SQL Database. The source and sink are in the same region. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The self-hosted integration runtime is using TLS 1.0, which is not supported by the services.
The error 'Could not create SSL/TLS secure channel' indicates a TLS version mismatch. Azure SQL Database and Azure Blob Storage require at least TLS 1.2 for secure connections. If the self-hosted integration runtime (SHIR) is configured to use TLS 1.0, the handshake fails because the services reject the older protocol. This is the most likely cause given the intermittent nature and the specific error message.
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 SQL Database firewall rules blocking the IP address of the integration runtime.
Why it's wrong here
Firewall blocks would give a different error message, like 'Cannot open server...'.
✗
Transient network connectivity issues between the services.
Why it's wrong here
Transient issues usually show timeout or connection reset errors, not SSL specific.
✗
The Azure SQL Database DTU limit has been exceeded, causing throttling.
Why it's wrong here
Throttling returns HTTP 429 or specific Azure SQL error codes.
✓
The self-hosted integration runtime is using TLS 1.0, which is not supported by the services.
Why this is correct
SSL/TLS handshake failure often stems from TLS version mismatch.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse SSL/TLS errors with network connectivity or throttling issues, overlooking the specific protocol version mismatch that Azure services now enforce.
Trap categories for this question
Command / output trap
Transient issues usually show timeout or connection reset errors, not SSL specific.
Detailed technical explanation
How to think about this question
Azure services enforce TLS 1.2 minimum since 2021 (RFC 8996). The SHIR uses .NET Framework's ServicePointManager, which defaults to TLS 1.0 on older Windows versions. To fix, set the registry key 'SchUseStrongCrypto' to 1 or configure the SHIR's machine.config to enable TLS 1.2. The intermittent nature occurs because the SHIR may occasionally negotiate a higher TLS version if the remote endpoint offers it, but fails when the endpoint strictly enforces TLS 1.2.
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-203 question in full detail.
Develop data processing — This question tests Develop data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The self-hosted integration runtime is using TLS 1.0, which is not supported by the services. — The error 'Could not create SSL/TLS secure channel' indicates a TLS version mismatch. Azure SQL Database and Azure Blob Storage require at least TLS 1.2 for secure connections. If the self-hosted integration runtime (SHIR) is configured to use TLS 1.0, the handshake fails because the services reject the older protocol. This is the most likely cause given the intermittent nature and the specific error message.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.