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This exam measures your ability to accomplish the following technical tasks: design and implement data models; design and implement data distribution; integrate an Azure Cosmos DB solution; optimize an Azure Cosmos DB solution; and maintain an Azure Cosmos DB solution.
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What are the objectives of the Microsoft DP-420 Certification Exam?
As per the guidance of the DP-420 Dumps, there are 02 main objectives of the Microsoft DP-420 Certification Exam. The first is to understand Azure Cosmos DB architecture & components, and the second is to understand the design and implementation of cloud-native applications using Microsoft Azure Cosmos DB. Assessment of the candidate's technical knowledge and skills in the field of Azure SQL Database Administration.
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 Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Optimize an Azure Cosmos DB solution | 15-20% | - Optimize query performance
|
| Topic 2: Maintain an Azure Cosmos DB solution | 25-30% | - Monitor and troubleshoot
|
| Topic 3: Design and implement data models | 35-40% | - Design and implement non-relational data models
|
| Topic 4: Integrate an Azure Cosmos DB solution | 5-10% | - Integrate with Azure services
|
| Topic 5: Design and implement data distribution | 5-10% | - Manage data distribution and failover
|
Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB Sample Questions:
You plan to create an Azure Cosmos DB account that will use an integrated cache. What will prevent you from using an integrated cache?
- A. Azure Private Link
- B. availability zones
- C. a default consistency level of Session
- D. a user-assigned managed identity
Correct Answer: A 🗳️
Explanation: Only visible for BraindumpsIT members. You can sign-up / login (it's free).
Hotspot Question
You have an Azure subscription that contains an Azure Cosmos DB for NoSQL account named account1 and a Log Analytics workspace named Workspace1. Workspace1 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.
Correct Answer:
Drag and Drop Question
You have an app that stores data in an Azure Cosmos DB for NoSQL account The app performs queries that return large result sets.
You need to return a complete result set to the app by using pagination. Each page of results must return 80 items.
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.
Correct Answer:
Explanation:
Step 1: Configure the MaxItemCount in QueryRequestOptions You can specify the maximum number of items returned by a query by setting the MaxItemCount. The MaxItemCount is specified per request and tells the query engine to return that number of items or fewer.
Box 2: Run the query and provide a continuation token
In the .NET SDK and Java SDK you can optionally use continuation tokens as a bookmark for your query's progress. Azure Cosmos DB query executions are stateless at the server side and can be resumed at any time using the continuation token.
If the query returns a continuation token, then there are additional query results.
Step 3: Append the results to a variable
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/sql/sql-query-pagination
Hotspot Question
You plan to create an Azure Cosmos DB container named account that will contain items in the following format.
You need to define a query that will return the ids of all accounts that have ever recorded a negative value for balance.
How should you complete the query? To answer select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Correct Answer:
You have an Azure Cosmos DB for NoSQL container named Container1 that contains 20,000 items. The items have 1,000 unique partition key values. Each item is 50 KB.
You need to evaluate the cost of running cross-partition queries by using Container1.
What should you do first?
- A. Increase the number of items in Container1.
- B. Decrease the number of items in Container1.
- C. Recreate Container1 by using a partition key that has lower cardinality.
- D. Recreate Container1 by using a partition key that has higher cardinality.
Correct Answer: A 🗳️
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