Question 127 of 851

Secure, monitor, and optimize data storage and data processing →mediumMultiple ChoiceObjective-mapped

Encrypt Azure Synapse Data at Rest and in Transit with TDE and TLS 1.2

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 ingestion pipeline for Azure Synapse Analytics. The pipeline will load sensitive financial data from an on-premises SQL Server to a dedicated SQL pool. The data must be encrypted at rest and in transit. Which combination of features should you use?

A
Use Always Encrypted in SQL Server and Azure Key Vault for column encryption.
Why wrong: Always Encrypted is column-level and not designed for bulk ingestion into Synapse.
B
Enable Azure Disk Encryption on the source server and use a VPN gateway.
Why wrong: Azure Disk Encryption is for IaaS VMs, not on-premises or Synapse.
C
Implement client-side encryption using Azure Storage client library and store keys in Microsoft Purview.
Why wrong: Client-side encryption is not natively supported for Synapse ingestion pipelines.
D
Use Azure Synapse Transparent Data Encryption (TDE) and enforce TLS 1.2 for connections.
TDE encrypts data at rest in Synapse, and TLS secures data in transit.

Full breakdown with real-world context →

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

✓

Use Azure Synapse Transparent Data Encryption (TDE) and enforce TLS 1.2 for connections.

Option D is correct because Transparent Data Encryption (TDE) encrypts data at rest in the dedicated SQL pool, and enforcing TLS 1.2 ensures encryption in transit. Option A is wrong because Always Encrypted is for column-level encryption, not for the entire pipeline. Option B is wrong because Azure Disk Encryption is for IaaS VMs, not for Azure Synapse. Option C is wrong because client-side encryption is not built-in for Synapse ingestion.

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.

✗
Use Always Encrypted in SQL Server and Azure Key Vault for column encryption.
Why it's wrong here
Always Encrypted is column-level and not designed for bulk ingestion into Synapse.
✗
Enable Azure Disk Encryption on the source server and use a VPN gateway.
Why it's wrong here
Azure Disk Encryption is for IaaS VMs, not on-premises or Synapse.
✗
Implement client-side encryption using Azure Storage client library and store keys in Microsoft Purview.
Why it's wrong here
Client-side encryption is not natively supported for Synapse ingestion pipelines.
✓
Use Azure Synapse Transparent Data Encryption (TDE) and enforce TLS 1.2 for connections.
Why this is correct
TDE encrypts data at rest in Synapse, and TLS secures data in transit.
Related concept
Read the scenario before looking for a memorised answer.

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.

What to study next

Got this wrong? Here's your next step.

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.

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FAQ

Questions learners often ask

What does this DP-203 question test?

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: Use Azure Synapse Transparent Data Encryption (TDE) and enforce TLS 1.2 for connections. — Option D is correct because Transparent Data Encryption (TDE) encrypts data at rest in the dedicated SQL pool, and enforcing TLS 1.2 ensures encryption in transit. Option A is wrong because Always Encrypted is for column-level encryption, not for the entire pipeline. Option B is wrong because Azure Disk Encryption is for IaaS VMs, not for Azure Synapse. Option C is wrong because client-side encryption is not built-in for Synapse ingestion.

What should I do if I get this DP-203 question wrong?

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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Same concept, more angles

1 more ways this is tested on DP-203

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. You are designing a data processing solution in Azure Synapse Analytics. The solution must prevent unauthorized access to data at rest and in transit. Which combination of features should you implement?

medium

✓ A.Enable Transparent Data Encryption (TDE) and enforce TLS 1.2.
B.Use Azure RBAC and firewall rules.
C.Use Always Encrypted and column-level security.
D.Store encryption keys in Azure Key Vault and enable double encryption.

Why A: Option A is correct because Transparent Data Encryption (TDE) encrypts data at rest in Azure Synapse Analytics, and enforcing TLS 1.2 ensures encryption of data in transit. Option B (Azure RBAC and firewall rules) controls access but does not provide encryption. Option C (Always Encrypted and column-level security) is primarily for client-side encryption and access control, not comprehensive at-rest encryption. Option D (storing keys in Key Vault and enabling double encryption) relates to key management and infrastructure encryption, but the direct combination of TDE and TLS 1.2 is the required solution.

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