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The descriptor file for a dataset contains which of the following information

  1. Data Set Header Information

  2. The schema of the data set

  3. Creation Time and Data of the data set

  4. A copy of configuration file use when the data set was created
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A,B,C,D Correct answer
Explanation

The descriptor file (.ds) for a DataStage dataset contains comprehensive metadata: the dataset header information, the complete schema definition, creation timestamp, and a copy of the configuration file settings that were in effect when the dataset was created. This ensures the dataset can be properly read and processed.

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