Data Engineering Chapter 2: Understanding Data
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Questions and Answers

What is a characteristic of structured data that makes it suitable for machine learning algorithms?

  • High storage requirements
  • Ability to store large amounts of data
  • Specific and organized architecture (correct)
  • Flexibility in data usage

    • What is a limitation of structured data in terms of its usage?

  • It can only be used for its intended purpose (correct)
  • It is highly susceptible to data breaches
  • It requires advanced software to analyze
  • It requires a large amount of storage space

    • What type of data storage systems are typically used for structured data?

  • Relational databases
  • Distributed file systems
  • Data warehouses with rigid schemas (correct)
  • Cloud-based storage systems

    • What is an example of a use case for structured data?

    <p>Customer relationship management (CRM)</p> Signup and view all the answers

    What is a benefit of structured data for business users?

    <p>It does not require an in-depth understanding of different types of data</p> Signup and view all the answers

    What is an example of structured data?

    <p>Hotel and ticket reservation data</p> Signup and view all the answers

    What is the primary purpose of collecting and analyzing data?

    <p>To gain a competitive edge and improve operations</p> Signup and view all the answers

    What percentage of all data is typically represented by structured data?

    <p>5% to 10%</p> Signup and view all the answers

    What is a characteristic of structured data?

    <p>It has a well-defined structure or adheres to a specified data model</p> Signup and view all the answers

    What is an example of a source of structured data?

    <p>Online forms</p> Signup and view all the answers

    What is the primary difference between data and unorganized information?

    <p>Data is processed to make it meaningful, while unorganized information is not</p> Signup and view all the answers

    What is a common use of data in various fields?

    <p>To derive insights, make decisions, and solve problems</p> Signup and view all the answers

    What is a characteristic of unstructured data that makes it challenging to analyze?

    <p>It lacks a predefined structure</p> Signup and view all the answers

    What is a use case for unstructured data involving image analysis?

    <p>Object recognition in images</p> Signup and view all the answers

    Why is data science expertise required for unstructured data?

    <p>Because it has an undefined or non-formatted nature</p> Signup and view all the answers

    What is an example of a specialized tool required for unstructured data?

    <p>Text analysis software</p> Signup and view all the answers

    What is a benefit of using unstructured data in business?

    <p>It enables businesses to better accommodate their customer base</p> Signup and view all the answers

    What is the role of unstructured data in big data analytics?

    <p>It plays a significant role in processing large volumes of varied data</p> Signup and view all the answers

    What is the primary function of Predictive Data Analytics in business?

    <p>Alert businesses of important activity ahead of time</p> Signup and view all the answers

    What is a characteristic of Semi-Structured data?

    <p>It contains tags and elements to group data</p> Signup and view all the answers

    What is the purpose of a Data Lake?

    <p>To store all structured and unstructured data at any scale</p> Signup and view all the answers

    What is Amazon DynamoDB designed for?

    <p>To provide seamless scalability for applications</p> Signup and view all the answers

    What is the primary function of Chatbots?

    <p>To route customer questions to appropriate answer sources</p> Signup and view all the answers

    What is MongoDB used for?

    <p>To provide support for JSON-like storage</p> Signup and view all the answers

    What is a common challenge when integrating semi-structured data with traditional databases?

    <p>Custom solutions or middleware requirements</p> Signup and view all the answers

    What is an example of using semi-structured data for investment insights?

    <p>Analyzing semi-structured financial news articles and earnings reports</p> Signup and view all the answers

    What is an advantage of using Apache Cassandra for semi-structured data?

    <p>Scalability and high availability without compromising performance</p> Signup and view all the answers

    What is an example of using semi-structured data for personalized product recommendations?

    <p>Analyzing customer browsing and purchase history</p> Signup and view all the answers

    What type of data is typically stored in e-commerce platforms?

    <p>Semi-structured data</p> Signup and view all the answers

    What is an example of using semi-structured data from social media?

    <p>Analyzing user profiles from social media</p> Signup and view all the answers

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