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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?

Maps (B) Signup and view all the answers

What is the primary function of YARN in Hadoop?

To manage resource allocation for processing data (A) Signup and view all the answers

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

Scatter Plots (A) Signup and view all the answers

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

To allow parallel processing of massive datasets (B) Signup and view all the answers

Which tool is commonly used for creating interactive visualizations?

Shiny (A) Signup and view all the answers

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

Bar charts are used for categorical data, while histograms are used for numerical data (B) Signup and view all the answers

What is the primary advantage of using data visualization techniques?

To gain insights and understand complex data (A) Signup and view all the answers