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

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

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

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

<p>Apache Cassandra (C)</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 (A)</p> Signup and view all the answers

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

<p>DEPARTMENTs (B)</p> Signup and view all the answers

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

<p>ER model (C)</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 (B)</p> Signup and view all the answers

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

<p>AGENT file (A)</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. (C)</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. (A)</p> Signup and view all the answers

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