Please answer questions 4,7,

Thank you!

1. Is Big Data really a problem on its own, or are the use, 8. Explain why it is important to capture and manage control, and security of the data the true problems? Pro- vide specific examples to support your answer. What are the implications of having incorrect data points in your Big Data? What are the implications of incorrect 10. Draw the entity-relationship diagram for a company or duplicated customer data? How valuable are decithat has departments and employees. In this company, a sions that are based on faulty information derived from incorrect data? knowledge. 9. Compare and contrast tacit knowledge and explicit 2. knowledge department must have at least one employee, and com- pany employees may work in only one department. Draw the entity-relationship diagram for library patrons 3. Explain the difficulties involved in managing data. 4. What are the problems associated with poor-quality data? and the process of checking out books 5. What is master data management? What does it have to 12. You are working at a doctor's office. You gather data 11. do with high-quality data? Explain why master data management is so important in companies that have multiple data sources. on the following entities: PATIENT, PHYSICIAN, PATIENT DIAGNOSIS, and TREATMENT. Develop a table for the entity, PATIENT VISIT. Decide on the 6. 7. Describe the advantages and disadvantages of relational primary keys and/or foreign keys that you want to use each entity databases