Database Management System

Casual Mode - Take your time!

1 / 10
✓
Correct
0
✗
Incorrect
0
★
Score
0%
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. Data mining
  2. Transformation
  3. Preprocessing
  4. Either transformation or data mining
  5. None of these
Change Mode