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A database analyst is modelling a database for a large toy manufacturer. Which statement describes a logical database model?

Question 57 - CBDA discussion

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A database analyst is modelling a database for a large toy manufacturer. Which statement describes a logical database model?

A.
The layer of views created to summarize data or provide another perspective of certain data
Answers
A.
The layer of views created to summarize data or provide another perspective of certain data
B.
A model that depicts the actual design of the relational database
Answers
B.
A model that depicts the actual design of the relational database
C.
An abstraction of the conceptual data model that includes rules of normalization
Answers
C.
An abstraction of the conceptual data model that includes rules of normalization
D.
Modelling that involves objects being defined at the schema level
Answers
D.
Modelling that involves objects being defined at the schema level
Suggested answer: C

Explanation:

A logical database model is a data model of a specific problem domain expressed independently of a particular database management product or storage technology. It describes data using notation that corresponds to a data organization used by a database management system, such as relational tables and columns. It also includes rules of normalization, which are the process of converting complex data structures into simple, stable data structures12

Reference: 1: Logical schema - Wikipedia 2: What Is a Data Model? | Coursera

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asked 18/09/2024
Sivagami Narayanan
49 questions
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