Big Data: Understanding the 4Vs
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Questions and Answers

What is the primary purpose of the HDFS component in Hadoop?

  • To visualize large amounts of data
  • To store data across multiple machines (correct)
  • To manage resource allocation for processing data
  • To provide a programming model for parallel processing
  • Which data visualization technique is best suited for representing parts of a whole?

  • Pie Charts (correct)
  • Scatter Plots
  • Histograms
  • Bar Charts
  • What is the main advantage of using Hadoop over traditional data processing systems?

  • Ability to process smaller datasets
  • Simplified data visualization
  • Cost-effectiveness due to commodity hardware (correct)
  • Faster processing times
  • Which tool is commonly used for geospatial data representation?

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

    What is the primary function of YARN in Hadoop?

    <p>To manage resource allocation for processing data</p> Signup and view all the answers

    Which data visualization technique is used to display relationships between two variables?

    <p>Scatter Plots</p> Signup and view all the answers

    What is the purpose of the MapReduce programming model in Hadoop?

    <p>To allow parallel processing of massive datasets</p> Signup and view all the answers

    Which tool is commonly used for creating interactive visualizations?

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

    What is the main difference between a bar chart and a histogram?

    <p>Bar charts are used for categorical data, while histograms are used for numerical data</p> Signup and view all the answers

    What is the primary advantage of using data visualization techniques?

    <p>To gain insights and understand complex data</p> Signup and view all the answers

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