Introduction to Database Management Systems: What is a Database?
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Questions and Answers

What is the main function of a Database Management System (DBMS)?

  • Summarizing data
  • Processing unstructured data
  • Generating raw data
  • Creating and maintaining the database (correct)

    • Which type of data includes numbers, text, and dates?

  • Processed data
  • Raw facts
  • Unstructured data
  • Structured data (correct)

    • What is the key function of a Relational DBMS like Oracle or IBM DB2?

  • Querying and generating reports (correct)
  • Inserting and deleting data
  • Summarizing data
  • Managing unstructured data

    • What does the term 'Information' refer to in the context of data?

    <p>Processed data</p> Signup and view all the answers

    What is the primary purpose of processing data through a Database Management System (DBMS)?

    <p>Maintaining valid and consistent data</p> Signup and view all the answers

    What is the role of a Database Management System (DBMS) in accessing the database through web applications?

    <p>Providing controlled access to the database</p> Signup and view all the answers

    Which company offers SQL-Server and Microsoft Access for the cheap DBMS on the desktop?

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

    What is the new trend in databases that involves data in means other than the tabular relations?

    <p>NOSQL databases</p> Signup and view all the answers

    Which of the following is an example of a popular NOSQL database?

    <p>Apache Cassandra</p> Signup and view all the answers

    What do applications do to interact with a database in the simplified database system environment?

    <p>Generate queries and transactions</p> Signup and view all the answers

    In the sample University Database, what do STUDENTs major in?

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

    What type of model are the above entities and relationships typically expressed in?

    <p>ER model</p> Signup and view all the answers

    What are the limitations of a File System mentioned in the text?

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

    What is the main concern of an agent according to the text?

    <p>AGENT file</p> Signup and view all the answers

    What would happen if the system crashes just as Mr. Ramas is making a payment, according to the text?

    <p>Data Integrity and Consistency Problems.</p> Signup and view all the answers

    What happens when an agent changes his/her phone number, according to the text?

    <p>Possible data integrity problems.</p> Signup and view all the answers

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