A city’s parks work-order app already runs on MongoDB-compatible document APIs on premises. Architects want a managed AWS service that preserves that document model with minimal application rewrite. Which service should they select?
Select an answer to reveal the explanation.
Short Explanation
If the app already speaks MongoDB-flavored documents, do not force it to learn Cassandra CQL or warehouse SQL overnight. DocumentDB is the managed lane that keeps the document model familiar.
Full Explanation
Amazon DocumentDB (with MongoDB compatibility) targets workloads that use MongoDB-compatible APIs and document models, easing migration of city apps already written that way. Amazon Keyspaces targets Cassandra CQL wide-column workloads. Redshift is a columnar warehouse, and QLDB is an immutable ledger—neither is the MongoDB-compatible document migration path.