Design and Implement a Non-Relational Data Model for Azure Cosmos DB for NoSQL DP-420 Practice Questions (Page 3)

Questions 11–15

1. 11foundation · easy

   In Azure Cosmos DB for NoSQL, what is the primary benefit of storing multiple entity types (e.g., customers and their orders) in the same container?

   • AIt eliminates the need for any indexing on the container.
   • BIt allows all related items to share the same partition key and be retrieved in a single query.
   • CIt automatically enforces referential integrity between the entity types.
   • DIt guarantees that all items in the container have identical schemas.
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   What is the purpose of document versioning in Azure Cosmos DB?

   • ATo keep a historical record of changes to a document over time.
   • BTo automatically resolve conflicts between concurrent writes.
   • CTo reduce the storage footprint by compressing older versions.
   • DTo ensure that all documents have the same schema version.
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4. 13foundation · easy

   Which scenario is the most appropriate for embedding related entities within the same document in Azure Cosmos DB?

   • AA customer document that contains every order the customer has ever placed, with orders growing unboundedly.
   • BA user document that contains a list of all messages in a chat application, which can be very large.
   • CAn order document that contains its line items, which are always retrieved together with the order.
   • DA product document that contains all reviews, where reviews are frequently updated independently by many users.
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5. 14foundation · easy

   What is the purpose of schema versioning in a non-relational data model like Azure Cosmos DB?

   • ATo allow the application to handle documents with different schemas as the schema evolves over time.
   • BTo reduce the storage cost by removing old properties.
   • CTo automatically migrate all documents to the latest schema version.
   • DTo enforce a strict schema on all documents in the container.
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6. 15foundation · easy

   What does the default time to live (TTL) setting on an Azure Cosmos DB container do?

   • AIt sets the maximum time a query can run before timing out.
   • BIt automatically deletes items from the container after a specified number of seconds.
   • CIt determines how long items are kept in the change feed.
   • DIt specifies the time interval for automatic backups of the container.
   Reveal Solution Discussion Select an answer first