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Microsoft DP-420 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Integrate an Azure Cosmos DB solution5-10%- Enable analytical workloads
  • 1. Configure analytical store
  • 2. Use Synapse Link
- Integrate with Azure services
  • 1. Connect to Azure Stream Analytics
  • 2. Use with Azure Functions, Logic Apps, Event Hubs
Topic 2: Design and implement data models35-40%- Implement connectivity and data access
  • 1. Use SDKs to connect and operate
  • 2. Write efficient SQL queries
- Plan sizing and scaling
  • 1. Provision throughput and storage
  • 2. Select consistency levels
- Design partitioning strategy
  • 1. Choose partition key based on workload
  • 2. Plan for distribution and throughput
- Design and implement non-relational data models
  • 1. Define primary and unique keys
  • 2. Denormalize data across documents
  • 3. Store multiple entity types in one container
  • 4. Configure time-to-live (TTL)
  • 5. Embed related entities in documents
  • 6. Reference between documents
  • 7. Identify data and access patterns
Topic 3: Design and implement data distribution5-10%- Design replication strategy
  • 1. Implement multi-region write
  • 2. Configure multi-region replication
- Manage data distribution and failover
  • 1. Manage regional availability
  • 2. Define failover priorities
Topic 4: Maintain an Azure Cosmos DB solution25-30%- Monitor and troubleshoot
  • 1. Analyze metrics and logs
  • 2. Use Azure Monitor and Application Insights
- 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. 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
Topic 5: Optimize an Azure Cosmos DB solution15-20%- Optimize query performance
  • 1. Optimize throughput allocation
  • 2. Tune query structure and syntax
- 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

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Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions (Q118-Q123):

NEW QUESTION # 118
You have an Azure Cosmos DB for NoSQL account named accounts1.
You plan to implement the integrated cache for account1.
You need to configure the connectivity mode and the consistency level for requests that target account1. The solution must maximize consistency while using the integrated cache.
What should you configure? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Explanation:


NEW QUESTION # 119
You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1 and a Log Analytics workspace named Workspace1. Workspace 1 stores the logs of account1.
You need to identify which operations used the most request units per second (RU/s) during the last 24 hours.
How should you complete the query? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point

Answer:

Explanation:

Explanation:


NEW QUESTION # 120
You have a container named container1 in an Azure Cosmos DB Core (SQL) API account. Upserts of items in container1 occur every three seconds.
You have an Azure Functions app named function1 that is supposed to run whenever items are inserted or replaced in container1.
You discover that function1 runs, but not on every upsert.
You need to ensure that function1 processes each upsert within one second of the upsert.
Which property should you change in the Function.json file of function1?

Answer: A

Explanation:
With an upsert operation we can either insert or update an existing record at the same time.
FeedPollDelay: The time (in milliseconds) for the delay between polling a partition for new changes on the feed, after all current changes are drained. Default is 5,000 milliseconds, or 5 seconds.
Incorrect Answers:
A: checkpointInterval: When set, it defines, in milliseconds, the interval between lease checkpoints. Default is always after each Function call.
C: maxItemsPerInvocation: When set, this property sets the maximum number of items received per Function call. If operations in the monitored collection are performed through stored procedures, transaction scope is preserved when reading items from the change feed. As a result, the number of items received could be higher than the specified value so that the items changed by the same transaction are returned as part of one atomic batch.


NEW QUESTION # 121
You have an app named App1 that uses an Azure Cosmos DB for NoSQL database.
App1 uses the spatial columns shown in the following table.

You need to design an indexing strategy for App1.
Which columns can be indexed by using spatial indexes?

Answer: A


NEW QUESTION # 122
You have a container in an Azure Cosmos DB Core (SQL) API account.
You need to use the Azure Cosmos DB SDK to replace a document by using optimistic concurrency.
What should you include in the code? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Answer:

Explanation:

Reference:
https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.cosmos.itemrequestoptions
https://cosmosdb.github.io/labs/dotnet/labs/10-concurrency-control.html


NEW QUESTION # 123
......

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