Cosmos DB is Microsoft's globally distributed, multi-model database service — and the DP-420 proves you can design and build cloud-native applications that leverage its unique capabilities. This Specialty cert covers data modeling, partitioning strategies, consistency levels, change feed, stored procedures, and the kind of distributed systems thinking that separates Cosmos DB experts from developers who just use it like a JSON document store. As more organizations build microservices architectures that demand low-latency, globally replicated data access, Cosmos DB expertise is becoming a premium skill. The $8,000/year incentive value and Data & AI designation contribution make this a high-ROI cert for partners building modern applications. With 136 focused practice questions, CERTIFY-Pro dives deep into the Cosmos DB-specific patterns that the exam tests — request units, partition key design, indexing policies, and the architectural decisions that determine whether your Cosmos DB bill is $100/month or $10,000/month.
136 questions organized across 10 focused study days. Each day targets a specific exam domain with detailed explanations.
DP-420 covers 8 functional areas. Study time is weighted by topic importance to help you focus where it matters most.