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Microsoft DP-420 Exam Syllabus Topics:

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

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q213-Q218):

NEW QUESTION # 213
Drag and Drop Question
You have an Azure subscription that contains the resources shown in the following table.

You need to create a container in db1 that has the following attributes:
- Name: Container1
- Encryption: Client-side encryption with Always Encrypted
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Explanation:


NEW QUESTION # 214
You are designing a data model for an Azure Cosmos DB for NoSQL account.
What are the partition limits for request units per second (RU/s) and storage? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation


NEW QUESTION # 215
You are troubleshooting the current issues caused by the application updates.
Which action can address the application updates issue without affecting the functionality of the application?

Answer: C

Explanation:
Bounded staleness is frequently chosen by globally distributed applications that expect low write latencies but require total global order guarantee. Bounded staleness is great for applications featuring group collaboration and sharing, stock ticker, publish-subscribe/queueing etc.
Scenario: Application updates in con-product frequently cause HTTP status code 429 "Too many requests". You discover that the 429 status code relates to excessive request unit (RU) consumption during the updates.
Reference:
https://docs.microsoft.com/en-us/azure/cosmos-db/consistency-levels


NEW QUESTION # 216
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database in an Azure Cosmos DB for NoSQL account that is configured for multi- region writes.
You need to use the Azure Cosmos DB SDK to implement the conflict resolution policy for a container. The solution must ensure that any conflicts are sent to the conflicts feed.
Solution: You set ConflictResolutionMode to Custom. You set ResolutionProcedure to a custom stored procedure. You configure the custom stored procedure to use the isTombstone parameter to resolve conflicts.
Does this meet the goal?

Answer: B


NEW QUESTION # 217
You have an Azure Synapse Analytics workspace named workspace1 that contains a server less SQL pool.
You have an Azure Table Storage account that stores operational data.
You need to replace the Table storage account with Azure Cosmos DB for NoSQL The solution must meet the following requirements:
* Support Queries from the server less SQL pool.
* Only pay for analytical compute when running queries.
* Ensure that analytical processes do
NOTE: affect operational processes.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Answer:

Explanation:

Explanation


NEW QUESTION # 218
......

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