DP-900Domain 3: Describe Considerations for Working with Non-Relational Data on AzureNon-Relational Data on AzuremediumSingle choice
A social network needs to store and traverse relationships — 'friends of friends' queries — in Cosmos DB. Which API models graph data?
A.NoSQL API (SQL for JSON)
NoSQL API stores JSON — not graph traversals.
B.Gremlin API
Graph model = Gremlin. Correct.
C.Table API
Table API = key-attribute — no relationships.
D.MongoDB API
Mongo API = documents — not native graph.
Why this answer
Cosmos is multi-model via APIs: NoSQL (JSON docs + SQL query), MongoDB API, Cassandra API (column-family), Table API (key-attribute), Gremlin API (graph nodes+edges for relationship traversal).
Correct answer: B · Last reviewed 2026-11-05
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