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Database Fundamentals Quiz
25 Questions
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Database Fundamentals Quiz

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Questions and Answers

Why do business professionals need to have a minimum knowledge about Database Processing?

  • To organize data into collections called Database
  • Because the DB is the center of an IS and the information requested by IS users needs definite data (correct)
  • To understand the building of a DB
  • Because it is complicated

    • What is a DBMS?

  • A software that provides an interface to interact with databases (correct)
  • A programming language used to manage data in databases
  • A tool for building and maintaining databases
  • A system for organizing data into collections called Database

    • Why are NoSQL DBMS becoming important?

  • Due to their ability to handle unstructured and semi-structured data at scale (correct)
  • Because they are more secure and reliable than traditional SQL databases
  • Due to their compatibility with all types of programming languages
  • Because they are simpler and easier to use than traditional SQL databases

    • Why are NoSQL DBMS becoming important?

    <p>Relational DB technology cannot meet the Big Data processing needs of companies like Google, Amazon, Facebook, and Netflix.</p> Signup and view all the answers

    What are some characteristics of NoSQL DBMS mentioned in the text?

    <p>Process data in large amounts, distributed in the Cloud, and rapidly.</p> Signup and view all the answers

    What is the main reason mentioned in the text for the emergence of NoSQL DBMS?

    <p>Relational DBMS cannot support the needs of Big Data, which is growing in volume and complexity.</p> Signup and view all the answers

    What is the primary role of a Database Application in a Database Application System?

    <p>Perform specific operations such as data entry, processing, and presentation using a DBMS</p> Signup and view all the answers

    What is the purpose of data modeling in building a database?

    <p>Create a logical representation of the data</p> Signup and view all the answers

    Why are NoSQL DBMS becoming important?

    <p>Due to the increasing volume, velocity, and variety of data, known as Big Data</p> Signup and view all the answers

    What is the purpose of a data dictionary in a database?

    <p>To hold metadata about the database schema and data, describing its contents</p> Signup and view all the answers

    What is the first element of a database?

    <p>A table</p> Signup and view all the answers

    What is the purpose of a foreign key in a database?

    <p>To link the set of tables together in a DB</p> Signup and view all the answers

    Which of the following is a defining feature of a database management system (DBMS)?

    <p>Handling activities such as data organization, security, concurrency, fault tolerance, and recovery</p> Signup and view all the answers

    What distinguishes SQL from Excel as a database management tool?

    <p>SQL allows for actions such as data manipulation, schema modification, and granting user access</p> Signup and view all the answers

    What is the purpose of the JOIN clause in SQL?

    <p>Recreating the initial table using relationships in more complex cases involving multiple tables</p> Signup and view all the answers

    What is the primary reason for the emergence of NoSQL DBMS as mentioned in the text?

    <p>Inability of Relational DB technology to meet Big Data processing needs</p> Signup and view all the answers

    What is a defining characteristic of NoSQL DBMS as per the text?

    <p>Ability to handle large amounts of distributed data in the Cloud</p> Signup and view all the answers

    Which companies are cited as examples of using NoSQL DBMS in the text?

    <p>Google, Amazon, Facebook, Netflix</p> Signup and view all the answers

    What is the primary challenge that Big Data poses to Relational DBMS?

    <p>Difficulty in scaling to handle large volumes of data</p> Signup and view all the answers

    What is the nature of data processed by NoSQL DBMS as mentioned in the text?

    <p>Unstructured, with high volume and velocity</p> Signup and view all the answers

    What is the primary advantage of NoSQL DBMS over Relational DB technology according to the text?

    <p>Scalability and rapid data processing</p> Signup and view all the answers

    What is the primary reason for the creation of NoSQL DBMS by companies like Google, Amazon, Facebook, and Netflix?

    <p>Inability of traditional DBMS to handle Big Data processing needs</p> Signup and view all the answers

    What is the main trend in the growth of data as mentioned in the text?

    <p>Data becoming more and more Big Data with huge volume, high velocity, and high variety</p> Signup and view all the answers

    What are the primary characteristics of Big Data mentioned in the text?

    <p>High volume, high velocity, high variety, and no validation</p> Signup and view all the answers

    What is the main reason for Relational DBMS being unable to support Big Data?

    <p>Inability to scale for large volumes of data</p> Signup and view all the answers

    Study Notes

    Introduction to Databases, SQL, and DBMS

    • A database is an organized collection of data with definite elements stored in a computer, including tables, relationships with keys, and a data dictionary.
    • Excel is not considered a database because it only contains tables, not the additional elements of a relational database.
    • Structured Query Language (SQL) is a language used to query a database, allowing actions such as data manipulation, schema modification, and granting user access.
    • User access defines the privileges of a user, including data access, actions on data, and administrative permissions.
    • SQL is powerful as it allows for creating the database schema, inserting data, retrieving information, and providing user access.
    • SQL's simplicity is demonstrated by its syntax for querying data, involving selecting columns and rows, organizing and presenting them visually.
    • The SELECT statement is a fundamental instruction in SQL for querying data from a table.
    • In more complex cases involving multiple tables, SQL uses the JOIN clause to recreate the initial table using relationships.
    • A database management system (DBMS) is an application used to create, process, and administer a database, handling activities such as data organization, security, concurrency, fault tolerance, and recovery.
    • DBMS can be commercial or open-source, with Microsoft Access being an example of a personal DBMS, not an enterprise DBMS.
    • DB processing involves retrieving information from raw data stored in a database through the use of a DBMS.
    • The DBMS is a means to operate with the database, while the database itself is an organized collection of data with definite elements.

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    Related Documents

    OIS 23-24 Sessione-A02 DatabaseProcessing (2).pdf

    Description

    Test your knowledge of databases, SQL, and DBMS with this introductory quiz. Explore the fundamentals of databases, structured query language (SQL), and database management systems (DBMS) through questions covering data organization, querying, user access, and more. Ideal for beginners looking to solidify their understanding of these essential concepts in data management.

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