Over the past few years, a new wave of data has emerged. Such data have always existed but did not receive the attention they receive today. These data come from multiple and varied sources, such as website logs, website posts in social sites, and machine-generated information (GPS, sensors, etc.).
Respond to the following in a minimum of 175 words: Discuss some of the characteristics of a NoSQL database. Include specific examples of popular online companies, such as Amazon; which uses NoSQL databases.