Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company has an existing on-premises SQL Server database that is 500 GB in size. The database uses SQL Server Agent jobs for scheduled maintenance and linked servers to query data from a remote SQL Server instance. The company wants to migrate to Azure with minimal application changes and needs automated backups and patching. Which Azure SQL service should they choose?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Azure SQL Database
Azure SQL Database is a fully managed PaaS offering, but it does not support SQL Agent jobs or linked servers. The company would need to redesign those features, which contradicts the requirement for minimal changes.
B
Best answer
Azure SQL Managed Instance
Azure SQL Managed Instance provides high compatibility with on-premises SQL Server, including support for SQL Agent jobs and linked servers. It also includes automated backups, patching, and high availability, meeting all requirements.
C
Distractor review
SQL Server on Azure Virtual Machines
SQL Server on Azure VMs gives full control but requires the company to manage backups, patching, and high availability manually. This does not meet the requirement for automated backups and patching.
D
Distractor review
Azure Database for PostgreSQL
Azure Database for PostgreSQL is a different database engine (PostgreSQL, not SQL Server). The company would need to perform a full migration, including changing application code and database schema, which is not minimal.
Common exam trap
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.
Technical deep dive
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.
Related practice questions
Related DP-900 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A data engineer needs to process streaming data from IoT devices and store the results in Azure Data Lake Storage for long-term analytics. The data must be processed in near real-time to detect anomalies and trigger alerts. Which Azure service should the engineer use for stream processing?
Question 2
A data engineer needs to query data stored in CSV files in Azure Data Lake Storage Gen2 using T-SQL in Azure Synapse Analytics, without loading the data into the database. Which feature should they use?
Question 3
A data engineer needs to process raw clickstream data from multiple websites that is stored in Azure Blob Storage as JSON files. The processing must run automatically every hour, transform the data into a structured format for reporting, and handle schema changes in the source data without manual intervention. Which Azure service should be used?
Question 4
A data engineer is designing a data lake architecture in Azure. They plan to first ingest raw data from various sources into a landing zone in Azure Data Lake Storage Gen2. Then they will clean, validate, and deduplicate that data in a second zone. Finally, they will create aggregated, business-ready datasets in a third zone for analysts. This layered approach is known as which architecture?
Question 5
A data engineer needs to transform large datasets stored in Azure Data Lake Storage Gen2 using Python and Apache Spark. They want a serverless compute option that automatically scales and requires no cluster management. Which Azure service should they use?
Question 6
A company collects customer feedback forms. Each form contains always-present fields like CustomerID and SubmissionDate, but also a free-text Comments field and optional fields like Rating or ProductCategory that vary between forms. How should this data be classified?
FAQ
Questions learners often ask
What does this DP-900 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure SQL Managed Instance — Azure SQL Managed Instance provides near 100% compatibility with the latest SQL Server on-premises (Enterprise Edition) database engine, including support for SQL Agent jobs and linked servers. It offers automated backups, patching, and high availability with minimal application changes. Azure SQL Database is a platform as a service (PaaS) offering but does not support SQL Agent or linked servers. SQL Server on Azure VMs offers full control but requires manual management of backups and patching. Azure Database for PostgreSQL is a different database engine.
What should I do if I get this DP-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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