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The Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version) certification exam consists of a variety of question types, including multiple choice, drag-and-drop, and scenario-based questions. It is a timed exam that lasts for 150 minutes, and the passing score is 700 out of 1000. DP-420-KR exam can be taken in-person at a Microsoft testing center, or online through a proctored exam delivery service.

Microsoft's DP-420 certification exam is designed to validate the skills and knowledge required to design and implement cloud-native applications using Microsoft Azure Cosmos DB. This course is ideal for professionals looking to expand their knowledge in cloud-native application development and gain expertise in Azure Cosmos DB. Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version) certification exam is intended for developers, architects, and IT professionals who are already familiar with the basics of Azure Cosmos DB and want to enhance their skills further.

Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/dp-420?WT.mc_id=Azure_blog-wwl

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Microsoft DP-420 Korean Exam Syllabus Topics:

SectionWeightObjectives
Design and implement data models35-40%- Implement data access
  • 1. Use consistency and query request options
  • 2. Implement patch operations
  • 3. Implement SQL queries with arrays and aggregation
  • 4. Use SDKs for CRUD operations
  • 5. Implement optimistic concurrency control
  • 6. Manage transactional batch operations
- Design and implement a non-relational data model for Azure Cosmos DB for NoSQL
  • 1. Denormalize data across documents
  • 2. Identify data and associated access patterns
  • 3. Store multiple related entities in the same document
  • 4. Reference between documents
  • 5. Identify partition key, id, and unique keys
  • 6. Store multiple entity types in the same container
- Design a data partitioning strategy
  • 1. Implement synthetic partition keys
  • 2. Plan for transactions with partition keys
  • 3. Choose a partition key
  • 4. Evaluate throughput and data distribution
  • 5. Choose a partitioning strategy
  • 6. Evaluate cross-partition query cost
- Plan and implement sizing and scaling
  • 1. Evaluate throughput and storage requirements
  • 2. Design resource governance and scaling
  • 3. Evaluate global distribution costs
  • 4. Choose between serverless, provisioned, and free tier
  • 5. Configure throughput
- Implement client connectivity options
  • 1. Handle connection errors
  • 2. Use Azure Cosmos DB emulator
  • 3. Configure client-side threading and logging
  • 4. Implement singleton client
  • 5. Create database connections
  • 6. Choose gateway or direct connectivity mode
- Implement server-side programming
  • 1. Write and deploy stored procedures
  • 2. Implement user-defined functions
  • 3. Implement triggers
Integrate an Azure Cosmos DB solution5-10%- Implement solutions across services
  • 1. Use Change Feed for denormalization
  • 2. Implement Azure AI Search integration
  • 3. Integrate Azure Functions and Event Hubs
  • 4. Aggregate and archive data
  • 5. Enforce referential integrity
- Enable analytical workloads
  • 1. Write data back from Spark
  • 2. Enable analytical store
  • 3. Configure Azure Cosmos DB Mirroring
  • 4. Query analytical store from Synapse
Maintain an Azure Cosmos DB solution25-30%- Monitor and troubleshoot Azure Cosmos DB solutions
  • 1. Implement backup and recovery strategies
  • 2. Troubleshoot throughput issues
  • 3. Monitor metrics and logs
  • 4. Monitor performance and availability
Optimize an Azure Cosmos DB solution15-20%- Optimize query performance
  • 1. Retrieve request unit cost
  • 2. Adjust indexing policies
  • 3. Implement integrated cache
  • 4. Calculate query cost
- Design and implement change feeds
  • 1. Develop Azure Functions triggers
  • 2. Consume change feeds using SDK
  • 3. Implement aggregation persistence
  • 4. Manage change feed instances
- Define and implement indexing strategy
  • 1. Choose appropriate index types
  • 2. Choose read-heavy or write-heavy indexing
  • 3. Optimize index performance
  • 4. Configure custom indexing policies
  • 5. Implement composite indexes
Design and implement data distribution5-10%- Design and implement multi-region writes
  • 1. Choose when to use multi-region writes
  • 2. Implement multi-region writes
  • 3. Implement conflict resolution policies
- Design and implement replication strategy
  • 1. Define automatic failover policies
  • 2. Evaluate consistency model impacts
  • 3. Choose when to distribute data
  • 4. Perform manual failovers
  • 5. Choose a consistency model

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