Entity Relationship Diagrams and Big Data Challenges Quiz
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Questions and Answers

What is the correct order of the dimensions of knowledge from lowest to highest?

  • Wisdom, Knowledge, Information, Data
  • Data, Information, Knowledge, Wisdom (correct)
  • Wisdom, Information, Knowledge, Data
  • Data, Knowledge, Information, Wisdom

    • Which form of knowledge involves know-how, craft, and skill?

  • Tacit knowledge (correct)
  • Explicit knowledge
  • Situational knowledge
  • Implicit knowledge

    • What is the main advantage of using the web for database access?

  • Inexpensive to add Web interface to system
  • Ease of use of browser software
  • Few or no changes to database required
  • All of the above (correct)

    • What does data administration establish policies and procedures to manage?

    <p>Data</p> Signup and view all the answers

    What is the role of database administration?

    <p>Creating and maintaining databases</p> Signup and view all the answers

    Where is explicit knowledge typically located?

    <p>In databases and the Web</p> Signup and view all the answers

    What is the main purpose of an Entity Relationship Diagram (ERD)?

    <p>To document the data model and illustrate relationships between entities</p> Signup and view all the answers

    What is the main challenge posed by Big Data?

    <p>Massive sets of unstructured/semi-structured data from various sources</p> Signup and view all the answers

    What is the purpose of a Data Warehouse?

    <p>To store current and historical data from core operational transaction systems</p> Signup and view all the answers

    What is the primary function of Data Mart?

    <p>To summarize or focus a portion of data for specific users</p> Signup and view all the answers

    What does Hadoop enable?

    <p>Distributed parallel processing of big data across inexpensive computers</p> Signup and view all the answers

    What is the role of Data Cleansing?

    <p>To detect and correct data that are incorrect, incomplete, improperly formatted, or redundant</p> Signup and view all the answers

    What is the main purpose of Web Mining?

    <p>Discovery and analysis of useful patterns and information from the Web</p> Signup and view all the answers

    What does Online Analytical Processing (OLAP) support?

    <p>Multidimensional data analysis</p> Signup and view all the answers

    What is the main role of a Knowledge Management System?

    <p>Collective and individual experience of applying knowledge to solve problems</p> Signup and view all the answers

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