Managing Digital Firm: Databases & Information Management Quiz
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Questions and Answers

What do we call a group of related files?

  • Record
  • Field
  • Database (correct)
  • Entity

Which term refers to each characteristic or quality describing an entity?

  • Record
  • Database
  • Field
  • Attribute (correct)

What is the key field used to uniquely identify each record in a relational database?

  • Table
  • Primary key (correct)
  • Foreign key
  • Field

Which operation creates a subset of data comprising all records that meet stated criteria?

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

Which term refers to the process of creating a subset of columns in a table, forming tables with only the specified information?

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

What is the purpose of referential integrity in RDBMS?

<p>To ensure that relationships between tables remain consistent (B)</p> Signup and view all the answers

What is the main feature of non-relational databases like "No SQL"?

<p>More flexible data model (D)</p> Signup and view all the answers

What are the main characteristics of big data?

<p>Petabytes, exabytes of data (D)</p> Signup and view all the answers

What is the foundation of Bitcoin and other crypto currencies?

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

What is the appeal of databases in the cloud to start-ups and smaller businesses?

<p>Easier to scale (A)</p> Signup and view all the answers

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