IBM PureData System for Analytics V7.0 — Question 3

You have a data set with numeric fields (columns) that contain null values. You want to replace each of these null values with the value of zero.
Which node will you use to accomplish this task?

Answer options

• A. Type node
• B. Filler node
• C. Filter node
• D. Binning node

Correct answer: C

Explanation

The correct answer is C, the Filter node, as it is designed to manage and preprocess data, including replacing null values with specific values like zero. The Type node (A) is used for defining data types, the Filler node (B) is not applicable for this specific task, and the Binning node (D) is for categorizing data rather than filling in nulls.