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| Section | Weight | Objectives |
|---|---|---|
| Data Modeling and Storage | 20% | - Data Modeling - Storage Optimization - File Formats |
| Data Processing | 28% | - Structured Streaming - ETL Pipelines - Data Transformation - Spark SQL |
| Data Quality and Governance | 12% | - Governance - Data Lineage - Data Quality |
| Monitoring and Troubleshooting | 16% | - Performance Optimization - Troubleshooting - Monitoring |
| Databricks Lakehouse Platform | 24% | - Delta Lake - Unity Catalog - Lakehouse Architecture - Data Management |
다음 중 엔드투엔드 테스트의 주요 이점을 설명하는 문장은 무엇입니까?
Correct Answer: B 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
매일 밤 실행되는 배치 작업은 클라우드 객체 스토리지 컨테이너에서 모든 데이터 파일을 가져오도록 구성되어 있으며, 해당 컨테이너의 레코드는 YYYY/MM/DD 형식의 중첩 디렉터리 구조로 저장됩니다. 각 날짜의 데이터는 해당 날짜에 소스 시스템에서 처리된 모든 레코드를 나타내며, 일부 레코드는 관리자 승인을 기다리는 동안 지연될 수 있습니다. 각 항목은 제품에 대한 사용자 리뷰를 나타내며 다음과 같은 스키마를 갖습니다.
user_id STRING, review_id BIGINT, product_id BIGINT, review_timestamp TIMESTAMP, review_text STRING 데이터 수집 작업은 이전 날짜의 모든 데이터를 소스 시스템과 동일한 스키마를 가진 대상 테이블 reviews_raw에 추가하도록 구성됩니다. 파이프라인의 다음 단계는 reviews_raw에 삽입된 모든 새 레코드를 중복 제거, 유효성 검사 및 보강이 완료된 테이블로 일괄 기록하는 작업입니다.
이 데이터 배치를 전파하는 데 필요한 컴퓨팅 비용을 최소화하는 솔루션은 무엇입니까?
Correct Answer: E 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
공장 내 IoT 센서의 오작동으로 인해 -500도라는 온도가 보고되었고, 이로 인해 LDP 파이프라인이 -100도에서 200도 사이의 값만 허용하는 기준에 부합하지 않아 오류를 발생시켰습니다. 데이터 엔지니어는 이러한 오류의 원인을 파악하기 위해 추가 분석을 진행하고자 합니다. 데이터 품질 기준을 유지하면서 오류 데이터를 해결하려면 어떻게 해야 할까요?
Correct Answer: B 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
데이터 엔지니어가 데이터 편향과 빈번하게 변경되는 쿼리 필터 열로 인해 문제가 발생하는 관리형 델타 테이블을 최적화하고 있습니다. 엔지니어는 쿼리 패턴이 변화할 때 발생하는 비용이 많이 드는 데이터 재작성을 피하고자 합니다. 테이블 크기는 1TB 미만입니다. 데이터 엔지니어는 이 요구 사항을 어떻게 충족해야 할까요?
Correct Answer: C 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
신입 데이터 엔지니어가 Databricks REST API 엔드포인트 2.0/jobs/create에 다음 JSON을 게시하는 워크로드를 구성했습니다.
모든 구성 및 참조된 리소스를 사용할 수 있다고 가정할 때, 이 워크로드를 세 번 실행했을 때의 결과를 설명하는 문장은 무엇입니까?
Correct Answer: B 🗳️
Explanation: Only visible for Prep4away members. You can sign-up / login (it's free).
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