Candidates who pass the Microsoft DP-420 exam will be able to demonstrate their expertise in designing and implementing cloud-native applications using Microsoft Azure Cosmos DB. They will also be able to differentiate themselves in the job market and potentially earn higher salaries.
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 exam is an important certification for professionals who are involved in designing and implementing cloud-native applications using Azure Cosmos DB. DP-420 exam validates the candidate's skills and knowledge in designing, developing, and implementing cloud-native applications using Azure Cosmos DB, and demonstrates their expertise in this field. Candidates who pass DP-420 exam will be able to demonstrate their ability to design and implement cloud-native applications using Azure Cosmos DB, and will be well-prepared to take on new challenges in this rapidly evolving field.
Microsoft DP-420 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Topic 1: Design and implement data models | 35-40% | - Design and implement non-relational data models
- 1. Denormalize data across documents
- 2. Identify data and access patterns
- 3. Embed related entities in documents
- 4. Reference between documents
- 5. Define primary and unique keys
- 6. Configure time-to-live (TTL)
- 7. Store multiple entity types in one container
- Design partitioning strategy
- 1. Choose partition key based on workload
- 2. Plan for distribution and throughput
- Implement connectivity and data access
- 1. Write efficient SQL queries
- 2. Use SDKs to connect and operate
- Plan sizing and scaling
- 1. Select consistency levels
- 2. Provision throughput and storage
|
| Topic 2: Design and implement data distribution | 5-10% | - Design replication strategy
- 1. Configure multi-region replication
- 2. Implement multi-region write
- Manage data distribution and failover
- 1. Define failover priorities
- 2. Manage regional availability
|
| Topic 3: Maintain an Azure Cosmos DB solution | 25-30% | - Manage data movement
- 1. Migrate between APIs or regions
- 2. Import/export data
- Implement backup and restore
- 1. Perform point-in-time restore
- 2. Configure periodic backup
- DevOps and automation
- 1. Deploy via ARM, Bicep, CLI
- 2. Automate operations
- Implement security
- 1. Encrypt data at rest and in transit
- 2. Manage authentication and authorization
- Monitor and troubleshoot
- 1. Analyze metrics and logs
- 2. Use Azure Monitor and Application Insights
|
| Topic 4: Optimize an Azure Cosmos DB solution | 15-20% | - Define and implement indexing strategy
- 1. Select index types and paths
- 2. Exclude or include properties
- Work with change feed
- 1. Trigger downstream workflows
- 2. Process changes incrementally
- Optimize query performance
- 1. Tune query structure and syntax
- 2. Optimize throughput allocation
|
| Topic 5: Integrate an Azure Cosmos DB solution | 5-10% | - Enable analytical workloads
- 1. Configure analytical store
- 2. Use Synapse Link
- Integrate with Azure services
- 1. Use with Azure Functions, Logic Apps, Event Hubs
- 2. Connect to Azure Stream Analytics
|