Data Mining MCQ

Below Data Mining quiz are Multiple Choice Questions (MCQs) type Quiz. These Data Mining MCQ Questions helps you to refresh your Data Mining, you can see the correct option by clicking on it. .
  • 1. 9.) _____ methods quantize the object space into a finite number of cells that form a grid structure.

    • Density-based
    • Model-based
    • Hierarchical-based
    • Grid-based
  • 2. 18.)Clustering is also called _______ .

    • data segmentation
  • 3. All of the following are types of Data Sets EXCEPT:

    • Graph
    • Ordered
    • Record
    • Numerical
  • 4. The partition of overall data warehouse is _______.

    • database
    • data cube
    • data mart
    • operational data.
  • 5. Which of the following statement is true about classification?

    • It is a measure of accuracy
    • It is a subdivision of a set
    • It is the task of assigning a classification
    • None of the above
  • 6. What is the use of data cleaning?

    • to remove the noisy data
    • correct the inconsistencies in data
    • transformations to correct the wrong data.
    • All of the above
  • 7. Which of the following applied on warehouse?

    • write only
    • read only
    • both a & b
    • none of these
  • 8. __________ may be defined as the data objects that do not comply with the general behavior or model of the data available.

    • Outlier Analysis
    • Evolution Analysis
    • Prediction
    • Classification
  • 9. Discriminating between spam and correct email is a

    • Clustering
    • Segmentatiin
    • Classification
    • Regression
  • 10. The issues like efficiency, scalability of data mining algorithms comes under ________

    • Performance issues
    • Diverse data type issues
    • Mining methodology and user interaction
    • All of the above
  • 11. Firms that are engaged in sentiment mining are analyzing data collected from?

    • experiments.
    • social media sites.
    • focus groups.
    • in-depth interviews.
  • 12. In certain cases, it is not clear what kind of pattern need to find, data mining should_____:

    • Try to perform all possible tasks
    • Perform both predictive and descriptive task
    • It may allow interaction with the user so that he can guide the mining process
    • All of the above
  • 13. Which of the following correctly defines the term "Discovery"?

    • It is hidden within a database and can only be recovered if one is given certain clues (an example IS encrypted information).
    • An extremely complex molecule that occurs in human chromosomes and that carries genetic information in the form of genes.
    • It is a kind of process of executing implicit, previously unknown and potentially useful information from data
    • None of the above
  • 14. ____ refers to the mapping or classification of a class with some predefined group or class.

    • Data Discrimination
    • Data Characterization
    • Data Definition
    • Data Visualization
  • 15. 23.) Data matrix is often called a one-mode matrix.

    • True
    • False