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 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?
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 C is correct because Transparent Data Encryption (TDE) encrypts data at rest in the dedicated SQL pool, and TLS 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 D is wrong because client-side encryption is not built-in for Synapse ingestion.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
Static NAT maps one inside address to one outside address.
PAT allows many inside hosts to share one public address using ports.
Inside local and inside global describe the private and translated addresses.
NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
→Identify inside and outside interfaces first.
→Check whether the scenario needs static NAT, dynamic NAT or PAT.
→Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-203 NAT questions on configuration and troubleshooting.
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Static NAT maps one inside address to one outside address..
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 C is correct because Transparent Data Encryption (TDE) encrypts data at rest in the dedicated SQL pool, and TLS 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 D 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?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related DP-203 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Question Discussion
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