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Reference: https://docs.microsoft.com/en-us/learn/certifications/exams/dp-420?WT.mc_id=Azure_blog-wwl

A section outlining the topics of a Microsoft DP-420 Certification Exam

DP-420 Dumps cover the following topics of the Microsoft DP-420 Certification Exam:

  • Design and implement data distribution: 10%
  • Optimize an Azure Cosmos DB solution: 20%
  • Design and execute information models: 40%
  • Maintain an Azure Cosmos DB solution: 20%
  • Integrate an Azure Cosmos DB solution: 10%

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Microsoft DP-420 Korean Exam Syllabus Topics:

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

Microsoft Designing and Implementing Cloud-Native Applications Using Microsoft Azure Cosmos DB (DP-420 Korean Version) Sample Questions:

Azure Cosmos DB for NoSQL 계정에 컨테이너가 있습니다. 이 컨테이너에는 IoT 장치의 원격 측정 데이터가 저장됩니다. 컨테이너는 telemetryId를 파티션 키로 사용하며 초당 1,000 요청 단위(RU/s)의 처리량을 갖습니다. 약 5,000개의 IoT 장치가 동일한 telemetryId 값을 사용하여 5분마다 데이터를 제출합니다.
귀사의 애플리케이션은 데이터 분석을 수행하고 추세 분석을 위해 단일 IoT 장치의 원격 측정 데이터를 자주 읽습니다.
다음은 컨테이너에 포함된 문서의 예시입니다.

분석 애플리케이션이 소비하는 요청 단위(RU) 양을 줄여야 합니다.
어떻게 해야 할까요?

  • A. 파티션 키가 deviceId인 새 컨테이너로 데이터를 이동합니다.
  • B. 날짜를 파티션 키로 사용하는 새 컨테이너로 데이터를 이동합니다.
  • C. 컨테이너의 offerThroughput 값을 감소시킵니다.
  • D. 컨테이너의 offerThroughput 값을 증가시킵니다.
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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아래 다이어그램은 Azure Cosmos DB Core(SQL) API 계정의 컨테이너에 대한 구성 설정을 보여줍니다.
다음 중 컨테이너의 구성을 올바르게 설명하는 문장은 무엇입니까?

  • A. 컨테이너에 보관된 물품은 해당 물품의 수명과 관계없이 항상 보관됩니다.
  • B. 모든 항목은 1개월 후 삭제됩니다.
  • C. 모든 항목은 1시간 후에 삭제됩니다.
  • D. 상품은 사용 기한이 있는 경우에만 만료됩니다.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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IoT 기기의 데이터를 저장하기 위해 Azure Cosmos DB for NoSQL 솔루션을 설계하고 있습니다.
기기에서 데이터 쓰기는 매초마다 발생합니다. 데이터는 무기한 보존됩니다.
다음은 데이터의 예시입니다.

쓰기 작업을 위해서는 다음 요구 사항을 충족하는 파티션 키를 선택해야 합니다.
- 파티션 불균형을 최소화합니다
- 용량 제한을 방지합니다
- 핫 파티션을 방지합니다
어떻게 해야 할까요?

  • A. 파티션 키로 deviceManufacturer를 사용하십시오.
  • B. deviceId와 timestamp를 포함하는 새로운 합성 키를 생성합니다.
  • C. deviceId와 sensor1Value를 포함하는 새로운 합성 키를 생성합니다.
  • D. 파티션 키로 deviceId를 사용합니다.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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핫스팟 질문
귀하의 Azure 구독에는 다음 표에 표시된 리소스가 포함되어 있습니다.

Synapse1의 내장 SQL 풀을 사용하여 여러 개의 SELECT 문으로 Container1을 쿼리할 계획입니다.
다음 요건을 충족해야 합니다.
- SELECT에서 사용할 수 있도록 account1의 키를 Synapse1에 저장합니다.
- SELECT 문의 FROM 절에서 분석 저장소를 지정합니다.
어떤 전략을 실행해야 할까요? 답변하려면 답변란에서 적절한 옵션을 선택하세요.
참고: 정답 하나당 1점입니다.

Reveal Solution  Discussion  0

Correct Answer:

핫스팟 질문
Azure Cosmos DB for NoSQL 컨테이너에 다음 항목이 포함되어 있습니다.

패치 작업을 사용하여 OrderQty 값을 5로 업데이트해야 합니다.
JSON 패치 문서를 어떻게 작성해야 합니까? 답변하려면 답변 영역에서 적절한 옵션을 선택하십시오.

Reveal Solution  Discussion  0

Correct Answer:

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