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Crucial Exams

CompTIA Data+ DA0-002 (V2) Practice Question

A data engineering team is ingesting two new data sources into a cloud data lake. The first source is a set of monthly customer-sales extracts that the ERP system exports as fixed-size CSV files. The second source comprises the company's firewall log files, which record every network connection as it happens. To minimize compute costs and avoid re-loading duplicate records, which consideration BEST explains why the ingestion process for the firewall logs should be designed as a streaming or incremental load rather than a full-replace load?

  • The log files follow a strict relational DDL schema, so a full reload is required each time to preserve referential integrity.

  • The log files store binary image data that must be base-64 decoded, so the entire file has to be processed on every run.

  • The log files are continuously appended, so the pipeline should ingest only the newly written lines via streaming or incremental processing.

  • Each log file is limited to exactly 10 MB, making it simplest to delete and reload the whole file whenever it reaches that limit.

CompTIA Data+ DA0-002 (V2)
Data Concepts and Environments
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