Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A social media platform stores user profiles as JSON documents where each profile can have different attributes (e.g., education, work history, interests). The platform also needs to traverse friend connections to recommend new connections using graph queries. The development team wants to use a single Azure Cosmos DB account for both workloads while minimizing complexity. Which combination of Azure Cosmos DB APIs 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
Best answer
SQL API and Gremlin API
Correct. The SQL API handles JSON document storage and querying, while the Gremlin API enables graph traversal for friend recommendations. Both can be used in the same account.
B
Distractor review
MongoDB API and Table API
MongoDB API is for document storage but does not support graph queries. Table API is for key-value data and lacks graph capabilities.
C
Distractor review
Cassandra API and SQL API
Cassandra API is for wide-column data and does not support graph traversal. While SQL API handles documents, this combination does not provide a graph API.
D
Distractor review
Gremlin API only
Using only Gremlin API would require storing profiles as graph data, which is not optimal for flexible JSON document queries and complicates the document storage.
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.
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Question 2
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Question 3
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Question 4
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Question 5
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Question 6
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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: SQL API and Gremlin API — Azure Cosmos DB supports multiple APIs. The SQL API (formerly DocumentDB API) is ideal for storing and querying JSON documents with a flexible schema using SQL-like syntax. The Gremlin API is a graph database API that allows traversing relationships (edges) between entities (vertices). By using a single Cosmos DB account with both SQL API and Gremlin API, the team can store the same data (or different containers) and query it using the appropriate API for the workload. The MongoDB API is for MongoDB-compatible workloads, Table API is for key-value, and Cassandra API is for Cassandra-compatible workloads, none of which natively support graph traversal.
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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