Multiple choice

Which of the following is a data cleansing stage where certain information is removed which is deemed unnecessary and may slow down queries?

  1. Transformation

  2. Preprocessing

  3. Data mining

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the data cleansing stage where certain information is removed, which is deemed unnecessary and may slow down queries.

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