Telefonica Brasil is one of the largest telecommunications companies in Brazil, and it provides landline and mobile services under the brand name Vivo for millions of consumers. The company is considering using big data to perform customer churn analysis in. order to anticipate when a customer is unhappy and likely to drop its service for that of a competitor. Review Questions 1. What sources of data might Telefonica Brasil use to perform customer churn analysis? 2. What database technology options might the firm elect to use? 3. Submit the assignment to Dropbox. 1. Why is it unlikely that a traditional SQL database would be able to 2. In addition to a database management system, what other Critical Thinking Questions meet the firm's needs? information system technology and resources are likely needed for this type of project 3. Submit the assignment to Dropbox