The following quiz “Data Mining MCQ Questions And Answers” provide Multiple Choice Questions (MCQs) related to Data Mining. These Data Mining MCQs are also Interviews (campus interview, walk-in interview, company interview), Placement or recruitment, entrance examinations, and competitive examinations oriented. You can practice the below questions to improve your Data Mining skills. You can click on the View Answer button to check the answer. Let’s solve this Data Mining MCQ Questions And Answers Quiz. Data mining, also known as knowledge discovery in data (KDD) is the process of finding anomalies, patterns, and correlations within large data sets involving methods at the intersection of machine learning, statistics, and database systems.
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1. Identify the term used to define the task of inferring a model from labeled training data.
- Supervised Learning
- Reinforcement Learning
- Unsupervised Learning
- None of the above
Answer : A Explanation: Supervised Learning is defined as the task of inferring a model from labeled training data. So, option A is correct.
2. Which one of the following refers to querying the unstructured textual data?
- Information retrieval
- Information access
- Information manipulation
- Information update
Answer : A Explanation: Option A is correct because Information retrieval refers to querying the unstructured textual data. We can also understand information retrieval as an activity (or process) in which the tasks of obtaining information from system recourses that are relevant to the information required from the huge source of information.
3. Which of these is correct about data mining?
- It is a procedure using which one can extract information out of huge sets of data
- It involves processes like Data Transformation, Data Integration, Data Cleaning
- It is a procedure in which knowledge is mined from the data
- All of the above
Answer : D Explanation: Data Mining: It is a procedure using which one can extract information out of huge sets of data, It involves processes like Data Transformation, Data Integration, Data Cleaning and also It is a procedure in which knowledge is mined from the data.
4. Which of the following is taken into account before diving into the data mining process?
- Vendor Consideration
- Compatibility
- Functionalibility
- All of the above
Answer : D Explanation: The following things is taken into account before diving into the data mining process: Vendor Consideration, Compatibility, Functionalibility.
5. Data can be stored, retrieved and updated in
- SMTOP
- OLTP
- FTP
- OLAP
Answer : B Explanation: Data can be stored, retrieved and updated in OLTP. So option B is correct.
6. ___________ is the goal to focus on summarizing and explaining a specific set of data.
- Inferential statistics
- Descriptive statistics
- Both A and B
- None of the above
Answer : B Explanation: Descriptive statistics is the goal to focus on summarizing and explaining a specific set of data.
7. ___________ is a subject-oriented, integrated, time-variant, nonvolatile collection
of data in support of management decisions.
- Data Warehousing
- Data Mining
- Web Mining
- Text Mining
Answer : A Explanation: Data Warehousing is a subject-oriented, integrated, time-variant, nonvolatile collection of data in support of management decisions.
8. What is the purpose of data preprocessing in data mining?
- To summarize data in a compact form
- To generate new data from existing data
- To transform raw data into a suitable format for analysis
- To visualize data for easier analysis
Answer : C Explanation: The purpose of data preprocessing in data mining is to transform raw data into a suitable format for analysis.
9. How many categories of functions involved in Data Mining?
- 2
- 4
- 5
- 3
Answer : A Explanation: There are 2 categories of functions involved in Data Mining: 1. Descriptive, 2. Classification & Prediction.
10. Which of the following can be considered as the correct process of Data Mining?
- Infrastructure, Exploration, Analysis, Interpretation, Exploitation
- Exploration, Infrastructure, Interpretation, Analysis, Exploitation
- Exploration, Infrastructure, Analysis, Interpretation, Exploitation
- Exploration, Infrastructure, Analysis, Exploitation, Interpretation
Answer : A Explanation: The process of data mining contains many sub-processes in a specific order. The correct order in which all sub-processes of data mining executes is Infrastructure, Exploration, Analysis, Interpretation, and Exploitation and hence, option A is correct.