DP-420퍼펙트공부자료, DP-420시험패스가능한인증공부

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Microsoft DP-420 Exam Syllabus Topics:

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

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최신 Azure Cosmos DB Developer Specialty DP-420 무료샘플문제 (Q88-Q93):

질문 # 88
You configure Azure Cognitive Search to index a container in an Azure Cosmos DB Core (SQL) API account as shown in the following exhibit.

Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.

정답：

설명：

Explanation:

Box 1: country
The country field is filterable.
Note: filterable: Indicates whether to enable the field to be referenced in $filter queries. Filterable differs from searchable in how strings are handled. Fields of type Edm.String or Collection(Edm.String) that are filterable do not undergo lexical analysis, so comparisons are for exact matches only.
Box 2: name
The name field is not Retrievable.
Retrievable: Indicates whether the field can be returned in a search result. Set this attribute to false if you want to use a field (for example, margin) as a filter, sorting, or scoring mechanism but do not want the field to be visible to the end user.
Note: searchable: Indicates whether the field is full-text searchable and can be referenced in search queries.
Reference: https://docs.microsoft.com/en-us/rest/api/searchservice/create-index


질문 # 89
You have an Azure Cosmos DB for NoSQL account that hosts the containers shown in the following table.

You need to implement a solution for processing changes to author names. The solution must use a change feed and an Azure Function and must meet the following requirements:
* Ensure that when a name change occurs, the authorNane field in the Books container is updated within 30 minutes.
* Minimize costs.
What should you configure? To answer, select the appropriate options in the answer area.

정답：

설명：

Explanation:


질문 # 90
You have an app that stores data in an Azure Cosmos DB Core (SQL) API 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.

정답：

설명：

1 - Configure the MaxItemCount in QueryRequestOptions
2 - Run the query and provide a continuation token
3 - Append the results to a variable


질문 # 91
You have an application named App1 that reads the data in an Azure Cosmos DB Core (SQL) API account.
App1 runs the same read queries every minute. The default consistency level for the account is set to eventual.
You discover that every query consumes request units (RUs) instead of using the cache.
You verify the IntegratedCacheiteItemHitRate metric and the IntegratedCacheQueryHitRate metric. Both metrics have values of 0.
You verify that the dedicated gateway cluster is provisioned and used in the connection string.
You need to ensure that App1 uses the Azure Cosmos DB integrated cache.
What should you configure?

정답：A

설명：
Explanation
Because the integrated cache is specific to your Azure Cosmos DB account and requires significant CPU and memory, it requires a dedicated gateway node. Connect to Azure Cosmos DB using gateway mode.
Reference: https://docs.microsoft.com/en-us/azure/cosmos-db/integrated-cache-faq


질문 # 92
You plan to create an Azure Cosmos DB account that will use the NoSQL API.
You need to create a grouping strategy for items that will be stored in the account. The solution must ensure that write and read operations on the items can be performed within the same transact!
What should you use to group the items?

정답：B


질문 # 93
......

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