In Target, what format is used for test reading?
💡 Model Answer
Target is the destination component in many ETL pipelines. When you run a test load, Target typically reads data in the same format that the source will provide. Common formats include CSV, JSON, Parquet, Avro, and XML. The choice depends on the source system and the downstream system’s requirements. For example, if the source is a relational database, CSV or Parquet is common; if the source is a NoSQL store, JSON or Avro may be used. Target can be configured to parse each format by specifying delimiters, schema, or compression settings. In a test environment, you often use a lightweight format like CSV or JSON to quickly validate the pipeline before moving to production formats like Parquet for analytics.
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