Database Management System

Time: 00:00:00

Attempted

Not Attempted

Marked For Review

Attempted & Reviewed

Question 1 of 10

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

Select Your Answer:

Data mining

Transformation

Preprocessing

Either transformation or data mining

None of these

Mark for Review

Attempted

Not Attempted

Marked for Review

Attempted & Reviewed

Current