1. ROLAP stores this data in an optimized multi-dimensional array storage, rather than in a relational database. Therefore it requires the pre-computation and storage of information in the cube. The above statement is True or False, justify your answer.
   1. True
   2. False

2. The data warehouse is a subject-oriented slice of the data mart logical model serving a narrow group of users. Many data warehouse only need a subset of data from the full tables in the data marts. The above statement is True or False, justify your answer.
   1. True
   2. False

3. Currently you work as Data Scientist in a mobile phone manufacturing industry. Your company CEO would like to know the benefits of implementing Business Intelligence in manufacturing industry. Suggestion ONE (1) benefit and justify why to the CEO?

4. Users can retrieve files from 3 months, 6 months, 12 months, or even previous data from a data warehouse. The above statement explain that Data Warehouse is integrated.
   1. TRUE
   2. FALSE

5. Data warehouses typically provide a concise and straightforward view around a particular entity, such as customer, product, or sales, instead of the global organization's ongoing operations. The above statement explain that Data Warehouse is non-volatile.
   1. True
   2. False

6. Variety is a property or characteristic of Big Data that corresponds to its quality or trustworthiness. The above statement is True or False, justify your answer.
   1. True.
   2. False

7. Structured data is data that doesnt fit neatly in a traditional database and has no identifiable internal structure and usually does not include a predefined data model, and it does not match well with relational tables The above statement is True or False, justify your answer.
   1. True
   2. False

8. Prescriptive analytics doesn't predict the future, but rather use probability theories to determine what's likely to happen based on patterns and trends revealed by analyzing historical data. The above statement is True or False, justify your answer.
   1. True
   2. False

9. Classification is a technique of organizing a group of data into classes where the objects with high similarity reside inside a category and the objects of two categories would be dissimilar to each other. The above statement is True or False, justify your answer.
   1. True
   2. False

10. Regression analysis is a statistical process for estimating the relationships among variables. The above statement is True or False, justify your answer.

1. True
2. False