The correct answer is to implement table partitioning and move old partitions to a separate database with a lower service tier. This approach directly addresses the need to archive old data in Azure SQL Database to reduce storage costs while keeping the archived data queryable, as the separate database can be scaled down to a cheaper tier like Basic or Standard. On the DP-300 exam, this scenario tests your understanding that Azure SQL Database lacks native tiered storage, so you must architect a manual archiving strategy using partitioning and cross-database queries. A common trap is choosing Hyperscale, which is designed for large, scalable databases but is more expensive for simple archiving, or Elastic Query, which only enables querying remote databases without moving data. Memory tip: think “partition and park” — split your table by date ranges and park older partitions in a cheaper database, keeping your main database lean and cost-efficient.
DP-300 Practice Question: Monitor, configure, and optimize database resources
This DP-300 practice question tests your understanding of monitor, configure, and optimize database resources. 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 manage an Azure SQL Database that uses the General Purpose service tier. You need to reduce storage costs by archiving old data that is not frequently accessed. The archived data must still be queryable occasionally. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement table partitioning and move old partitions to a separate database with a lower service tier.
Option D is correct because Azure SQL Database does not natively support tiered storage, but you can move data to Azure SQL Database Hyperscale (which allows scaling storage independently) or to Azure SQL Data Warehouse (now Azure Synapse). However, the best approach is to implement data archiving by partitioning and moving old data to a separate database with lower service tier. But among the options, D is the most practical: use SQL Server Stretch Database, which is deprecated, but the current alternative is to use Hyperscale or archive to Azure Storage and query via PolyBase. Actually, the correct answer is A: use partitioning and move old data to a cheaper database tier. Option B is wrong because Hyperscale is more expensive. Option C is wrong because Elastic Query is for querying remote databases. So I'll adjust explanation.
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.
✗
Enable Stretch Database to transparently stretch old data to Azure Blob Storage.
Why it's wrong here
Stretch Database is deprecated; not recommended.
✓
Implement table partitioning and move old partitions to a separate database with a lower service tier.
Why this is correct
Allows archiving old data in a cheaper database while keeping it queryable.
Related concept
Static NAT maps one inside address to one outside address.
✗
Use Elastic Query to query historical data stored in Azure Blob Storage.
Why it's wrong here
Elastic Query queries external data sources but does not archive data automatically.
✗
Migrate to the Hyperscale service tier to take advantage of tiered storage.
Why it's wrong here
Hyperscale does not automatically reduce costs for archiving; it scales storage independently.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 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-300 NAT questions on configuration and troubleshooting.
Monitor, configure, and optimize database resources — This question tests Monitor, configure, and optimize database resources — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Implement table partitioning and move old partitions to a separate database with a lower service tier. — Option D is correct because Azure SQL Database does not natively support tiered storage, but you can move data to Azure SQL Database Hyperscale (which allows scaling storage independently) or to Azure SQL Data Warehouse (now Azure Synapse). However, the best approach is to implement data archiving by partitioning and moving old data to a separate database with lower service tier. But among the options, D is the most practical: use SQL Server Stretch Database, which is deprecated, but the current alternative is to use Hyperscale or archive to Azure Storage and query via PolyBase. Actually, the correct answer is A: use partitioning and move old data to a cheaper database tier. Option B is wrong because Hyperscale is more expensive. Option C is wrong because Elastic Query is for querying remote databases. So I'll adjust explanation.
What should I do if I get this DP-300 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-300 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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-300 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-300 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.