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Database Systems Quizzes

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Questions and Answers

What is the main purpose of naming conventions in database systems?

To simplify the process of data modeling

To reduce the complexity of data models

To facilitate communication between parties and promote self-documentation (correct)

To improve the performance of database queries

What is the basic logical structure of the hierarchical model?

A network-like structure with multiple nodes

A tree-like structure with multiple levels (correct)

A graph-like structure with multiple edges

A flat structure with a single level

What is the main advantage of the network model over the hierarchical model?

Better support for complex data relationships (correct)

Enhanced data security

Faster query performance

Improved data consistency

What is the name of the database standard that allows a record to have more than one parent?

Network model Signup and view all the answers

What is the term for a collection of records in a 1:M relationship in the network model?

Owner-member set Signup and view all the answers

What is the primary purpose of business rules in database design?

To describe policies and procedures that govern data usage within an organization. Signup and view all the answers

In a data model, what is the term used to describe the characteristic of an entity?

Attribute Signup and view all the answers

Which of the following is NOT a type of relationship in a data model?

Many-to-one (M:1) Signup and view all the answers

What is the primary benefit of using data modeling in database design?

To facilitate communication among designers, programmers, and end users. Signup and view all the answers

What is the term used to describe the process of translating business rules into data model components?

Business rule translation Signup and view all the answers