Vidyalelo
Data Science · all questions

Data Modeling
practice.

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What is the primary goal of data modeling in the context of data science?

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In data modeling, what is the term for a visual representation of the relationship between different entities in a database?

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What is the process of transforming raw data into a structured format suitable for analysis called?

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Which data modeling approach represents data as a collection of entities, their attributes, and the relationships between them?

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What is the purpose of a Data Flow Diagram (DFD) in data modeling?

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In data modeling, what is the term for the process of defining the structure and organization of data in a database?

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Which data modeling approach is primarily used for representing data in a tabular format with rows and columns?

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What is the primary purpose of an Entity-Relationship Diagram (ERD) in data modeling?

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In data modeling, what is the term for the process of creating new features or variables from existing data attributes?

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Which data modeling approach is commonly used for representing data as a hierarchy with parent and child relationships?

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What is the primary objective of feature selection in data modeling?

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In data modeling, what is the term for the process of filling in missing data values with estimated or imputed values?

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Which data modeling approach represents data as a collection of objects with their attributes and behaviors?

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What is the primary purpose of a Data Dictionary in data modeling?

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In data modeling, what is the term for the process of selecting the most relevant data attributes for model building?

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In data modeling, what is the term for the process of representing data as objects and their interactions in software applications?

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What is the primary purpose of a decision tree model in data modeling?

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Which data modeling approach represents data as a collection of attributes and their dependencies in a directed acyclic graph?

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In data modeling, what is the term for the process of transforming data into a format suitable for storage and retrieval?

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What is the primary goal of clustering in data modeling?

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