This DP-203 practice question tests your understanding of develop 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 processing solution using Azure Synapse Analytics serverless SQL pool. The solution must query data stored in Parquet files in Azure Data Lake Storage Gen2. The queries are ad-hoc and vary greatly. Which feature should you use to optimize query performance for frequently accessed data partitions?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use OPENROWSET with explicit file path filtering.
Option C is correct because the OPENROWSET function with file path filtering can prune partitions by specifying the path to specific folders. Option A is wrong because materialized views are not supported in serverless SQL pool. Option B is wrong because result-set caching is for dedicated SQL pool. Option D is wrong because workload management is for dedicated SQL pool.
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.
✗
Implement workload management to prioritize queries.
Why it's wrong here
Workload management is for dedicated SQL pool.
✓
Use OPENROWSET with explicit file path filtering.
Why this is correct
OPENROWSET with path filtering prunes partitions and improves performance.
Related concept
Static NAT maps one inside address to one outside address.
✗
Enable result-set caching on the serverless SQL pool.
Why it's wrong here
Result-set caching is not available in serverless SQL pool.
✗
Create materialized views on the Parquet files.
Why it's wrong here
Materialized views are not supported in serverless SQL pool.
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.
Develop data processing — This question tests Develop 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 OPENROWSET with explicit file path filtering. — Option C is correct because the OPENROWSET function with file path filtering can prune partitions by specifying the path to specific folders. Option A is wrong because materialized views are not supported in serverless SQL pool. Option B is wrong because result-set caching is for dedicated SQL pool. Option D is wrong because workload management is for dedicated SQL pool.
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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