Database Normalization Basics Quiz
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Questions and Answers

What is the main objective when designing a database for an enterprise?

  • To create an accurate representation of the data (correct)
  • To minimize the number of attributes in the database
  • To maximize the storage capacity of the database
  • To speed up the data retrieval process

What does normalization focus on in the database design process?

  • Focusing solely on data retrieval efficiency
  • Examining the relationships between attributes (correct)
  • Ignoring the data requirements of the enterprise
  • Seeking to maximize redundancy in the database

What is the purpose of normalization in database design?

  • To produce relations with desirable properties that support data requirements (correct)
  • To introduce redundancy in the database
  • To increase the complexity of the database structure
  • To minimize the relationships between attributes

What does normalization use to help identify the optimal grouping for attributes?

<p>A series of tests described as normal forms (D)</p> Signup and view all the answers

Which property of data or relationships does normalization examine?

<p>Important to the enterprise (A)</p> Signup and view all the answers

What database design technique is described in this lecture and the next?

<p>Normalization (A)</p> Signup and view all the answers

What is the main goal of normalization in database design?

<p>To minimize data redundancy and update anomalies (A)</p> Signup and view all the answers

Which of the following is a characteristic of a suitable set of relations in a database?

<p>Minimal redundancy with each attribute represented only once (B)</p> Signup and view all the answers

What is a major aim of relational database design?

<p>To group attributes into relations to minimize data redundancy (D)</p> Signup and view all the answers

What problems may arise from relations with redundant data in a database?

<p>Insertion, deletion, or modification anomalies (A)</p> Signup and view all the answers

In database design, what is the role of primary keys and foreign keys in normalization?

<p>They enable the modeling of relationships between data (D)</p> Signup and view all the answers

What approach illustrates the use of normalization as a bottom-up standalone database design technique?

<p>Approach 1 (D)</p> Signup and view all the answers

How does normalization support database design?

<p>As a formal technique that can be used at any stage of database design (A)</p> Signup and view all the answers

What type of anomalies may occur due to redundant data in a relation?

<p>Insertion, deletion, or modification anomalies (A)</p> Signup and view all the answers

Which type of approach uses ER modeling as a top-down technique followed by normalization as a validation technique?

<p>Approach 2 (C)</p> Signup and view all the answers

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