Multiple choice technology

Expression transformation performs:

  1. Field level calculation

  2. Row Level Calculation

  3. Batch Level Calculation

  4. None
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B Correct answer
Explanation

Expression transformation performs row-level calculations, applying logic to each row of data passing through it. It can create new ports, modify existing values, and apply functions like concatenation or arithmetic operations. Field-level would mean per-column (which doesn't make sense as a concept), and batch-level implies aggregation which Aggregator does.

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