Explanation: Using Amazon EMR, you can instantly provision as much or as little capacity as you like to perform data-intensive tasks for applications such as web indexing, data mining, log file analysis, machine learning, financial analysis, scientific simulation, and bioinformatics research. Amazon EMR lets you focus on crunching or analyzing your data without having to worry about time-consuming setup, management or tuning of Hadoop clusters or the compute capacity upon which they sit. Reference: https://aws.amazon.com/elasticmapreduce/faqs/