Databricks-Certified-Data-Engineer-Professional Korean Q&A - in .pdf
- Exam Code: Databricks-Certified-Data-Engineer-Professional Korean
- Exam Name: Databricks Certified Data Engineer Professional Exam (Databricks-Certified-Data-Engineer-Professional Korean Version)
- Updated: Oct 08, 2026
- Q & A: 250 Questions and Answers
- Convenient, easy to study.
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- Updated: Oct 08, 2026
- Q & A: 250 Questions and Answers
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- Exam Code: Databricks-Certified-Data-Engineer-Professional Korean
- Exam Name: Databricks Certified Data Engineer Professional Exam (Databricks-Certified-Data-Engineer-Professional Korean Version)
- Updated: Oct 08, 2026
- Q & A: 250 Questions and Answers
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Databricks Databricks-Certified-Data-Engineer-Professional Korean Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Databricks Lakehouse Platform Architecture | - Medallion architecture (Bronze, Silver, Gold) - Data governance concepts (Unity Catalog basics) - Workspace and cluster architecture |
| Topic 2: Data Modeling and Transformation | - Spark SQL transformations - Performance optimization techniques - Dimensional modeling concepts |
| Topic 3: Delta Lake and Data Management | - Time travel and versioning - Delta Lake transactions and ACID properties - Schema evolution and enforcement |
| Topic 4: Data Ingestion and Processing | - Structured Streaming fundamentals - Batch and streaming ingestion with Auto Loader - ETL pipeline design patterns |
| Topic 5: Production Pipelines and Orchestration | - Job scheduling and monitoring - Databricks Workflows - Error handling and recovery strategies |
Databricks Certified Data Engineer Professional Exam (Databricks-Certified-Data-Engineer-Professional Korean Version) Sample Questions:
아래의 각 구성은 클러스터당 총 400GB의 RAM, 총 160개의 코어, 그리고 VM당 하나의 Executor만 갖는다는 점에서 동일합니다.
완료가 반드시 보장되어야 하는 매우 오래 걸리는 작업이 주어졌을 때, 하나 이상의 VM 장애가 발생하더라도 작업 완료를 보장할 수 있는 클러스터 구성은 무엇일까요?
- A. - 총 VM 수: 1
- 실행기당 400GB
- 160 코어/실행기 - B. - 총 VM 수: 4
- 실행기당 100GB
- 40개 코어/실행기 - C. - 총 VM 수: 16
- 실행기당 25GB
- 10개 코어/실행기 - D. - 총 VM 수: 8
- 실행기당 50GB
- 20개 코어/실행기 - E. - 총 VM 수: 2
- 실행기당 200GB
- 80개 코어/실행기
Correct Answer: C 🗳️
데이터 엔지니어링 팀은 고객 테이블의 여러 열에 걸쳐 데이터 품질을 모니터링하는 SQL 경고를 생성해야 합니다. 이메일 주소가 누락된 고객 비율이 15%를 초과하고 전화번호 형식이 잘못된 고객 비율이 10%를 초과하는 두 가지 조건이 모두 충족될 때 경고가 발생하도록 하려고 합니다. 이러한 다중 열 경고 조건을 구현하는 데 적합한 SQL 쿼리 패턴은 무엇일까요?
- A. SELECT email_null_pct, phone_invalid_pct FROM (SELECT (COUNT(CASE WHEN email IS NULL THEN 1 END) *
100.0/COUNT(*)) as email_null_pct, (COUNT(CASE WHEN phone NOT RLIKE ''[0-9-+()\\s]+$' THEN 1 END)*
100.0/COUNT(*)) as phone_invalid_pct FROM customers) - B. 이메일이 NULL이거나 phone_format_invalid가 true인 고객 테이블에서 COUNT(*)를 선택합니다.
- C. SELECT CASE WHEN email_null_pct >15 AND phone_invalid_pct> 10 THEN 1 ELSE 0 END FROM (SELECT (COUNT (CASE WHEN email IS NULL THEN 1 END) * 100.0 / COUNT (*)) as phone_invalid_pct FROM customers) metrics
- D. SELECT email, phone FROM customers WHERE email IS NULL AND phone NOT RLIKE ''[0-9-
+()\\s]+$'
Correct Answer: A 🗳️
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데이터 엔지니어가 기본 설정을 사용하여 공유 액세스 모드로 새 클러스터를 생성했습니다.
데이터 엔지니어는 필요한 경우 개발팀이 드라이버 로그를 볼 수 있도록 접근 권한을 부여해야 합니다.
개발팀이 이를 수행하는 데 필요한 최소 클러스터 권한은 무엇입니까?
- A. 볼 수 있음
- B. 재시작 가능
- C. 부착 가능
- D. 관리 가능
Correct Answer: A 🗳️
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데이터 아키텍트는 데이터 레이크의 내장 버전 관리 및 타임 트래블 기능에 대해 알게 되었습니다. 감사 목적으로 고객 테이블에 나타나는 모든 유효한 도로명 주소를 완벽하게 유지해야 하는 요구 사항이 있습니다.
건축가는 기존 레코드를 새 값으로 덮어쓰고 Delta Lake의 타임 트래블 기능을 활용하여 장기적인 데이터 감사를 지원하는 Type 1 테이블을 구현하는 데 관심이 있습니다. 프로젝트의 데이터 엔지니어는 Type 2 테이블이 더 나은 성능과 확장성을 제공할 것이라고 생각합니다. 이 결정에 있어 어떤 정보가 핵심적일까요?
- A. 유형 1 변경 사항은 데이터 파일을 제자리에서 수정하기 때문에 Delta Lake 시간 여행을 사용하여 이러한 테이블의 이전 버전을 조회할 수 없습니다.
- B. Delta Lake 타임 트래블은 장기적인 버전 관리 솔루션을 제공하기에는 비용이나 지연 시간 측면에서 확장성이 떨어집니다.
- C. Delta Lake는 Type 0 테이블만 지원합니다. Delta Lake 테이블에 레코드가 삽입되면 수정할 수 없습니다.
- D. 얕은 복제본은 유형 1 테이블과 결합하여 장기 버전 관리를 위한 기록 쿼리 속도를 높일 수 있습니다.
- E. 유형 2 테이블은 단일 업데이트에서 여러 필드를 설정해야 하므로 쿼리가 부분적으로 완료된 상태에서 실패하면 데이터 손상이 발생할 수 있습니다.
Correct Answer: B 🗳️
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현재 활성화된 클러스터의 모든 노드에 노트북 수준의 범위로 Python 패키지를 설치하는 방법은 무엇입니까?
- A. 클러스터 UI를 사용하여 PyPi에서 라이브러리 설치
- B. 노트북 셀에서 &Pip install을 사용하세요
- C. 노트북 설정 스크립트에서 source env/bin/activate를 실행합니다.
- D. 노트북 셀에서 &sh install을 사용하세요
Correct Answer: A 🗳️
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