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Microsoft DP-420 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Optimize an Azure Cosmos DB solution15-20%- Work with change feed
  • 1. Process changes incrementally
  • 2. Trigger downstream workflows
- Define and implement indexing strategy
  • 1. Select index types and paths
  • 2. Exclude or include properties
- Optimize query performance
  • 1. Optimize throughput allocation
  • 2. Tune query structure and syntax
Topic 2: Maintain an Azure Cosmos DB solution25-30%- Implement security
  • 1. Manage authentication and authorization
  • 2. Encrypt data at rest and in transit
- Manage data movement
  • 1. Migrate between APIs or regions
  • 2. Import/export data
- Monitor and troubleshoot
  • 1. Analyze metrics and logs
  • 2. Use Azure Monitor and Application Insights
- Implement backup and restore
  • 1. Configure periodic backup
  • 2. Perform point-in-time restore
- DevOps and automation
  • 1. Automate operations
  • 2. Deploy via ARM, Bicep, CLI
Topic 3: Design and implement data models35-40%- Design and implement non-relational data models
  • 1. Denormalize data across documents
  • 2. Define primary and unique keys
  • 3. Reference between documents
  • 4. Store multiple entity types in one container
  • 5. Identify data and access patterns
  • 6. Embed related entities in documents
  • 7. Configure time-to-live (TTL)
- Plan sizing and scaling
  • 1. Provision throughput and storage
  • 2. Select consistency levels
- Implement connectivity and data access
  • 1. Use SDKs to connect and operate
  • 2. Write efficient SQL queries
- Design partitioning strategy
  • 1. Plan for distribution and throughput
  • 2. Choose partition key based on workload
Topic 4: Integrate an Azure Cosmos DB solution5-10%- Enable analytical workloads
  • 1. Use Synapse Link
  • 2. Configure analytical store
- Integrate with Azure services
  • 1. Connect to Azure Stream Analytics
  • 2. Use with Azure Functions, Logic Apps, Event Hubs
Topic 5: Design and implement data distribution5-10%- Manage data distribution and failover
  • 1. Define failover priorities
  • 2. Manage regional availability
- Design replication strategy
  • 1. Implement multi-region write
  • 2. Configure multi-region replication

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q190-Q195):

NEW QUESTION # 190
You have an Azure Cosmos DB for NoSQL account1 that is configured for automatic failover. The account1 account has a single read-write region in West US and a and a read region in East US.
You run the following PowerShell command.

What is the effect of running the command?

Answer: A

Explanation:
You can use the Set-AzCosmosDBAccountRegion cmdlet to update the regions that an Azure Cosmos DB account uses. You can use this cmdlet to add a region or change the region failover order. The cmdlet requires a resource group name, an Azure Cosmos DB account name, and a list of regions in desired failover order1.
For your scenario, based on the PowerShell command, you are using the Set-AzCosmosDBAccountRegion cmdlet to update the regions for an Azure Cosmos DB account named account1 that is configured for automatic failover. The command specifies two regions: West US and East US. The effect of running the command is that the account will be configured for multi-region writes.
Multi-region writes is a feature of Azure Cosmos DB that allows you to write data to any region in your account and have it automatically replicated to all other regions. This feature provides high availability and low latency for write operations across multiple regions. To enable multi-region writes, you need to specify at least tworegions in your account and set them as write regions2. In your command, you are setting both West US and East US as write regions by using the -IsZoneRedundant parameter with a value of $true for both regions.


NEW QUESTION # 191
You have an Azure Cosmos DB for NoSQL account named account that has the disablekeyBasedletadatwriteAccess property enabled.
You are developing an app named App1 that will be used by a use1 named DevUser1 to create containers in account1. DevUser1 has a non-privileged user account in the Azure AD tenant.
You need to ensure that DevUser1 can use App1 to create containers in account1.
What should you do? To answer, select the appropriate options in the answer area.
NOTE Each correct selection is worth one point.

Answer:

Explanation:


NEW QUESTION # 192
You have a database in an Azure Cosmos DB for NoSQL account. The database contains a container named container1. The indexing mode container1 is set to none. You configure Azure Cognitive Search to extract data from container1 and make the data searchable. You discover that the Cognitive Search index is missing all the data from the Azure Cosmos DB index. What should you do to resolve the issue?

Answer: B


NEW QUESTION # 193
You are implementing an Azure Data Factory data flow that will use an Azure Cosmos DB (SQL API) sink to write a dataset. The data flow will use 2,000 Apache Spark partitions.
You need to ensure that the ingestion from each Spark partition is balanced to optimize throughput.
Which sink setting should you configure?

Answer: B

Explanation:
Explanation
Batch size: An integer that represents how many objects are being written to Cosmos DB collection in each batch. Usually, starting with the default batch size is sufficient. To further tune this value, note:
Cosmos DB limits single request's size to 2MB. The formula is "Request Size = Single Document Size * Batch Size". If you hit error saying "Request size is too large", reduce the batch size value.
The larger the batch size, the better throughput the service can achieve, while make sure you allocate enough RUs to empower your workload.
Reference: https://docs.microsoft.com/en-us/azure/data-factory/connector-azure-cosmos-db


NEW QUESTION # 194
You have a global ecommerce application that stores data in an Azure Cosmos OB for NoSQL account. The account is contoured for multi-region writes.
You need to create a stored procedure for a custom conflict resolution policy for a new container. In the event of a conflict caused by a deletion the deletion must always take priority.
Which parameter should you check m the stored procedure function?

Answer: A


NEW QUESTION # 195
......

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