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DP-900 · Question #219

DP-900 Question #219: Real Exam Question with Answer & Explanation

The correct answer is D: Gremlin. Azure Cosmos DB for Apache Gremlin is a graph database service that can be used to store massive graphs with billions of vertices and edges. You can query the graphs with millisecond latency and evolve the graph structure easily. The API for Gremlin is built based on Apache Tinke

Submitted by carlos_mx· Mar 30, 2026

Question

Which Azure Cosmos DB API should you use for a graph database?

Options

  • ATable
  • BCassandra
  • CCore (SQL)
  • DGremlin

Explanation

Azure Cosmos DB for Apache Gremlin is a graph database service that can be used to store massive graphs with billions of vertices and edges. You can query the graphs with millisecond latency and evolve the graph structure easily. The API for Gremlin is built based on Apache TinkerPop, a graph computing framework that uses the Gremlin query language. https://learn.microsoft.com/en-us/azure/cosmos-db/gremlin/introduction

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