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Databricks Databricks-Certified-Professional-Data-Engineer Korean Valid Braindumps - Databricks Certified Professional Data Engineer Exam (Databricks-Certified-Professional-Data-Engineer Korean Version)

Databricks-Certified-Professional-Data-Engineer Korean
  • Exam Code: Databricks-Certified-Professional-Data-Engineer-KR
  • Exam Name: Databricks Certified Professional Data Engineer Exam (Databricks-Certified-Professional-Data-Engineer Korean Version)
  • Updated: Oct 15, 2026
  • Q & A: 217 Questions and Answers
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About Databricks Databricks-Certified-Professional-Data-Engineer Korean Exam

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Databricks Databricks-Certified-Professional-Data-Engineer Korean Exam Syllabus Topics:

TopicDetails
Topic 1
  • Monitoring & Logging: This topic includes understanding the Spark UI, inspecting event timelines and metrics, drawing conclusions from various UIs, designing systems to control cost and latency SLAs for production streaming jobs, and deploying and monitoring both streaming and batch jobs.
Topic 2
  • Security & Governance: It discusses creating Dynamic views to accomplishing data masking and using dynamic views to control access to rows and columns.
Topic 3
  • Databricks Tooling: The Databricks Tooling topic encompasses the various features and functionalities of Delta Lake. This includes understanding the transaction log, Optimistic Concurrency Control, Delta clone, indexing optimizations, and strategies for partitioning data for optimal performance in the Databricks SQL service.
Topic 4
  • Testing & Deployment: It discusses adapting notebook dependencies to use Python file dependencies, leveraging Wheels for imports, repairing and rerunning failed jobs, creating jobs based on common use cases, designing systems to control cost and latency SLAs, configuring the Databricks CLI, and using the REST API to clone a job, trigger a run, and export the run output.
Topic 5
  • Data Processing: The topic covers understanding partition hints, partitioning data effectively, controlling part-file sizes, updating records, leveraging Structured Streaming and Delta Lake, implementing stream-static joins and deduplication. Additionally, it delves into utilizing Change Data Capture and addressing performance issues related to small files.

Reference: https://www.databricks.com/learn/certification/data-engineer-professional

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Databricks Certified Professional Data Engineer Exam (Databricks-Certified-Professional-Data-Engineer Korean Version) Sample Questions:

Question #1

데이터 엔지니어는 데이터 레이크에서 대량의 원시 JSON 로그를 가져와 보고용 Delta 테이블로 변환하는 야간 배치 ETL 파이프라인을 구축하는 업무를 맡았습니다. 데이터는 하루에 한 번 대량으로 유입되며, 파이프라인 처리에는 몇 시간이 소요됩니다. 비용 효율성도 중요하지만, 파이프라인 완료의 성능과 신뢰성이 최우선 과제입니다.
데이터 엔지니어는 어떤 유형의 Databricks 클러스터를 구성해야 할까요?

  • A. 대화형 SQL 워크로드를 위해 설계된 고동시성 클러스터입니다.
  • B. 파이프라인 실행 중에 여러 워커에 걸쳐 자동 확장되도록 구성된 작업 클러스터입니다.
  • C. 비용 절감을 위해 워커 노드 수가 적은 경량 단일 노드 클러스터입니다.
  • D. 작업 시작 시 지연 시간을 최소화하기 위해 항상 실행 중인 다목적 클러스터가 있습니다.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Question #2

주니어 데이터 엔지니어가 Delta Lake의 변경 데이터 피드(Change Data Feed) 기능을 활용하여 `delta.enableChangeDataFeed = true` 속성으로 생성된 브론즈 테이블의 모든 행에 대해 유효했던 모든 값을 나타내는 유형 1 테이블을 생성하려고 합니다. 이 엔지니어는 다음 코드를 매일 실행할 계획입니다.

다음 중 위 쿼리를 여러 번 실행했을 때의 실행 과정과 결과를 가장 잘 설명하는 문장은 무엇입니까?

  • A. 작업이 실행될 때마다 대상 테이블은 삽입 또는 업데이트된 레코드의 전체 이력으로 덮어쓰여져 원하는 결과를 얻을 수 있습니다.
  • B. 작업이 실행될 때마다 원본 버전과 현재 버전 간의 차이가 계산됩니다. 이로 인해 일부 레코드에 중복 항목이 발생할 수 있습니다.
  • C. 이 작업이 실행될 때마다 마지막 실행 이후 삽입되거나 업데이트된 레코드만 대상 테이블에 추가되어 원하는 결과를 얻을 수 있습니다.
  • D. 작업이 실행될 때마다 새로 업데이트된 레코드가 대상 테이블에 병합되어 동일한 기본 키를 가진 이전 값을 덮어씁니다.
  • E. 작업이 실행될 때마다 삽입 또는 업데이트된 레코드의 전체 이력이 대상 테이블에 추가되어 중복 항목이 많이 발생합니다.
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Correct Answer: E  🗳️

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Question #3

데이터 엔지니어링 팀은 다음 코드를 유지 관리합니다.

이 코드가 논리적으로 올바른 결과를 생성하고 원본 테이블의 데이터가 중복 제거 및 유효성 검사를 거쳤다고 가정할 때, 이 코드가 실행될 때 발생하는 상황을 설명하는 문장은 무엇입니까?

  • A. enriched_itemized_orders_by_account 쿼리가 실행되기 전까지는 계산이 수행되지 않습니다. 쿼리가 실행되면 조인 로직에 참조된 세 테이블 각각의 현재 유효한 데이터 버전을 사용하여 결과가 계산됩니다.
  • B. enriched_itemized_orders_by_account 테이블은 조인 로직에서 참조되는 세 테이블 각각의 현재 유효한 데이터 버전을 사용하여 덮어쓰여집니다.
  • C. 증분 작업은 소스 테이블에 새 행이 기록되었는지 감지합니다. 새 행이 감지되면 모든 결과가 다시 계산되어 enriched_itemized_orders_by_account 테이블을 덮어쓰는 데 사용됩니다.
  • D. 증분 작업은 상태 저장소의 정보를 활용하여 소스 테이블에서 결합되지 않은 행을 식별하고 이러한 행을 enriched_iteinized_orders_by_account 테이블에 기록합니다.
  • E. 배치 작업은 accountID를 기본 키로 사용하여 enriched_itemized_orders_by_account 테이블을 업데이트하고, 현재 테이블 버전과 값이 다른 행만 교체합니다.
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Correct Answer: B  🗳️

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Question #4

아래 쿼리를 사용하여 Delta Lake 테이블이 생성되었습니다.

원래 쿼리에 오타가 있음을 확인하고 아래 코드를 실행했습니다.
ALTER TABLE prod.sales_by_store RENAME TO prod.sales_by_store
두 번째 명령어를 실행하면 어떤 결과가 나타날까요?

  • A. 메타스토어의 테이블 참조가 업데이트되고 모든 데이터 파일이 이동됩니다.
  • B. 메타스토어의 테이블 참조가 업데이트되었지만 데이터는 변경되지 않았습니다.
  • C. 모든 관련 파일과 메타데이터는 단일 ACID 트랜잭션 내에서 삭제되고 다시 생성됩니다.
  • D. 테이블 이름 변경 사항은 Delta 트랜잭션 로그에 기록됩니다.
  • E. 이름이 변경된 테이블에 대해 새로운 Delta 트랜잭션 로그가 생성됩니다.
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Correct Answer: B  🗳️

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Question #5

데이터 엔지니어가 Databricks의 Lakeflow Declarative Pipelines(LDP)를 사용하여 고객 데이터를 수집하는 간단한 데이터 파이프라인을 구축하고 있습니다. 원시 고객 데이터는 클라우드 스토리지에 JSON 형식으로 저장되어 있습니다. 이 작업은 원시 JSON 데이터를 읽어 추가 처리를 위해 Delta 테이블에 쓰는 Lakeflow Declarative Pipelines를 생성하는 것입니다.
어떤 코드 조각이 원시 JSON 데이터를 올바르게 가져와 LDP를 사용하여 델타 테이블을 생성합니까?

  • A. import dlt
    @dlt.table
    def raw_customers():
    return spark.read.json( " s3://my-bucket/raw-customers/ " )
  • B. import dlt
    @dlt.table
    def raw_customers():
    return spark.read.format( " parquet " ).load( " s3://my-bucket/raw-customers/ " )
  • C. import dlt
    @dlt.table
    def raw_customers():
    return spark.read.format( " csv " ).load( " s3://my-bucket/raw-customers/ " )
  • D. import dlt
    @dlt.view
    def raw_customers():
    return spark.format.json( " s3://my-bucket/raw-customers/ " )
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Correct Answer: A  🗳️

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