DP-420 Microsoft · Database
Building AI Applications with Azure Cosmos DB. A full DP-420 practice exam across the whole outline: consistency, throughput and SDK clients, point reads, paging, patch and transactional batch, embedding versus referencing, hierarchical and synthetic partition keys, change feed modes, the Agent Kit, RBAC, private endpoints and data masking, backup and failover, indexing and diagnostics, fleet pools and analytics, vector and hybrid search, agent memory and Fabric mirroring.
Take the free DP-420 diagnostic10 questions, no card needed
3 questions from the free diagnostic, with answers and explanations.
Which consistency level is the default for a new Azure Cosmos DB account, and guarantees that a client reads its own writes within a session?
Answer: A (Session)
Session consistency is the default and gives read-your-writes within a session.
Wingtip wants a service that reacts to every new or changed order, spreads the work across several instances automatically, and remembers where it stopped after a restart. What should it use?
Answer: A (The change feed processor)
The change feed processor stores progress in a lease container and balances partitions across instances.
Wingtip wants to restore its orders container to how it was 30 minutes ago, after a bad script, without opening a support case. Which backup mode makes this possible?
Answer: A (Continuous backup)
Continuous backup allows self-service point-in-time restore within the retention window.
Share of practice questions per skill area.
Run Azure SQL in production, build AI-enabled SQL databases, or build AI apps on Azure Cosmos DB: security, performance, HA/DR, partitioning, vector search and RAG.
Yes. Create a free account and take the DP-420 free diagnostic: 10 questions across every skill area of the exam, with a study plan for the topics to work on. You can retake it as often as you like.
Each full practice test has 40 questions with a 100-minute timer, and you pass at 70%. There are 6 practice tests plus a harder challenge test, with 350 questions in total.
Single choice, multiple select, case studies and exhibits (screenshots, diagrams and code), the same formats you meet on the real exam.
No. They are original questions written for ExamKite and mapped to the Microsoft skills outline, never copied from the real exam. Using leaked exam questions breaks the certification provider's exam rules and can get your certification revoked.
More answers in the full FAQ.
Start with the free diagnostic and get a study plan for the topics you miss.
