Database Management Systems and SQL Fundamentals Quiz
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Questions and Answers

What does a Database Management System (DBMS) do?

  • Manipulate the application programs
  • Store and retrieve users' data while considering appropriate security measures (correct)
  • Design and populate the database
  • Instruct the operating system to provide specific data
  • What is a database system designed for?

  • To develop third-party software
  • To handle security problems
  • To be built and populated with data for a certain task (correct)
  • To manipulate the operating system
  • What is an ER diagram mainly composed of?

  • Difficulty in accessing data, concurrent access, and multiple file formats
  • Data redundancy, inconsistency, and isolation
  • Integrity problems, atomicity of updates, and security problems
  • Entity Sets, Attributes, and Relationship Set (correct)
  • What difficulties were database management systems developed to handle?

    <p>Data redundancy and inconsistency, difficulty in accessing data, data isolation, integrity problems, atomicity of updates, concurrent access by multiple users, security problems</p> Signup and view all the answers

    What is a primary key used for in a database?

    <p>To identify each entity uniquely</p> Signup and view all the answers

    What is pseudo code?

    <p>A high-level description of a computer program or algorithm</p> Signup and view all the answers

    How is pseudo code characterized?

    <p>It is not tied to any specific programming language</p> Signup and view all the answers

    What is the purpose of using pseudo code?

    <p>To plan and describe the logic of a program before writing actual code</p> Signup and view all the answers

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