1. : What is KNIME primarily used for in data mining?
(A) Image processing
(B) Video editing
(C) Data analytics, reporting, and integration
(D) Database management
2. : Which of the following best describes KNIME’s interface for building data workflows?
(A) Command-line interface
(B) Text-based interface
(C) Graphical user interface (GUI) with drag-and-drop features
(D) Code editor interface
3. : In KNIME, what is a “Node”?
(A) A data storage unit
(B) A graphical representation of a step in a workflow
(C) A visualization tool
(D) A machine learning model
4. : What is the purpose of the “Workflow Coach” in KNIME?
(A) To visualize data
(B) To provide suggestions for the next steps in building workflows
(C) To export data
(D) To manage user permissions
5. : Which file formats can be imported into KNIME for analysis?
(A) .csv
(B) .xlsx
(C) .json
(D) All of the above
6. : What is the “KNIME Hub”?
(A) A place to store local datasets
(B) A community platform for sharing workflows, nodes, and components
(C) A database management system
(D) A tool for visualizing data
7. : Which of the following is a data preprocessing node in KNIME?
(A) Decision Tree Learner
(B) Normalizer
(C) K-Means
(D) Random Forest
8. : In KNIME, what is the purpose of the “Loop” nodes?
(A) To visualize the data
(B) To repeat a series of steps multiple times
(C) To preprocess data
(D) To classify data
9. : Which machine learning algorithms are available in KNIME?
(A) Decision Trees
(B) Support Vector Machines (SVM)
(C) Neural Networks
(D) All of the above
10. : How can you share a KNIME workflow with others?
(A) Exporting it as a .knwf file
(B) Taking a screenshot of the workflow
(C) Printing the workflow diagram
(D) Writing down the steps manually
11. : What is a common application of KNIME in business?
(A) Web design
(B) Market basket analysis
(C) Video production
(D) Graphic design
12. : In KNIME, what is the “Joiner” node used for?
(A) To visualize data
(B) To merge two datasets based on a common attribute
(C) To split data into training and test sets
(D) To filter data
13. : Which KNIME feature allows for automated execution of workflows?
(A) Auto Model
(B) Batch execution
(C) Workflow Coach
(D) Repository Management
14. : What is the purpose of the “Scatter Plot” node in KNIME?
(A) To preprocess the data
(B) To visualize the relationship between two variables
(C) To apply machine learning algorithms
(D) To store data
15. : How can missing values be handled in a KNIME workflow?
(A) Using the “Missing Value” node
(B) Using the “Decision Tree Learner” node
(C) Using the “K-Means” node
(D) Using the “SVM” node