11. What is the primary objective of feature selection in data modeling? A. To increase model complexity B. To improve model accuracy C. To reduce dimensionality D. To represent data relationships Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
12. In data modeling, what is the term for the process of filling in missing data values with estimated or imputed values? A. Data Aggregation B. Data Cleaning C. Data Imputation D. Data Transformation Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
13. Which data modeling approach represents data as a collection of objects with their attributes and behaviors? A. Hierarchical Modeling B. Relational Modeling C. Object-Oriented Modeling D. Entity-Relationship Modeling Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
14. What is the primary purpose of a Data Dictionary in data modeling? A. To visualize the data distribution B. To represent data relationships C. To define data attributes and properties D. To create summary statistics Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
15. In data modeling, what is the term for the process of selecting the most relevant data attributes for model building? A. Data Aggregation B. Data Cleaning C. Feature Selection D. Data Transformation Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
16. In data modeling, what is the term for the process of representing data as objects and their interactions in software applications? A. Hierarchical Modeling B. Relational Modeling C. Object-Oriented Modeling D. Entity-Relationship Modeling Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
17. What is the primary purpose of a decision tree model in data modeling? A. To represent the structure of a database B. To predict outcomes C. To visualize data relationships D. To calculate summary statistics Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
18. Which data modeling approach represents data as a collection of attributes and their dependencies in a directed acyclic graph? A. Relational Modeling B. Bayesian Network Modeling C. Object-Oriented Modeling D. Entity-Relationship Modeling Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
19. In data modeling, what is the term for the process of transforming data into a format suitable for storage and retrieval? A. Data Aggregation B. Data Wrangling C. Data Encoding D. Data Integration Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
20. What is the primary goal of clustering in data modeling? A. To increase model complexity B. To group similar data points C. To improve model accuracy D. To calculate summary statistics Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
