What is a Database?

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Questions and Answers

Which phase involves defining the overall design of the database and determining the structure that will hold the data?

  • Logical design
  • Conceptual design (correct)
  • Requirements specification and analysis
  • Physical design

What is a main characteristic of the database approach described in the text?

  • Defining data multiple times for various users
  • Each user defines and implements the files needed for a specific software application
  • Data abstraction (correct)
  • File processing for each user

What is one of the purposes of the Database Catalog mentioned in the text?

  • Preventing program-operation independence
  • Forcing program-data dependence
  • Storing data separately from access programs (correct)
  • Maintaining multiple copies of data files

What does Program-Operation Independence allow according to the text?

<p>Allows changing implementations without affecting interfaces (B)</p> Signup and view all the answers

What does Data Model serve as according to the text?

<p>A method to provide conceptual representation of data (D)</p> Signup and view all the answers

What is the purpose of a database?

<p>Represent some aspect of the real world (D)</p> Signup and view all the answers

Which of the following is NOT an example of a database application?

<p>Artificial intelligence databases (D)</p> Signup and view all the answers

What is the function of a DBMS?

<p>Create and maintain a database (C)</p> Signup and view all the answers

What does defining a database involve?

<p>Specify the data types, structures, and constraints of the data to be stored (B)</p> Signup and view all the answers

What is metadata in the context of databases?

<p>Descriptive information stored by the DBMS (B)</p> Signup and view all the answers

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