Data analysis processes in RapidMiner are built using rectangular building blocks called ________.

• A. Nodes
• B. Modules
• C. Operators
• D. Sequences

Answer: (C)

In RapidMiner, data analysis processes are built from rectangular blocks called operators. Each operator performs a specific data action—reading data, filtering, transforming features, training a model, evaluating results, and so on. By placing these operators in a process and connecting their input and output ports, you create a data flow that RapidMiner executes step by step. You can also nest operators to form sub-processes, enabling more complex workflows.

This term fits RapidMiner’s terminology precisely: the fundamental units you manipulate in the process editor are operators. Other terms like nodes, modules, or sequences don’t represent the same core building block in RapidMiner’s workflow design.