1. True or false? Internal data is the information that the businesses already have on hand or legally buy from outside sources.

2. Which one of the following ones is NOT a primary source?

3. Which method of gathering primary data is a form of qualitative research consisting of interviews in which a group of people are asked about their perceptions, opinions, beliefs, and attitudes towards a product, service, concept, advertisement, idea, or packaging?

4. Which statement about differences between primary and secondary external data is incorrect?

5. In which of thhheee following secondary external sources can you find data about import/export statistics or production statistics?

6. Which data is described with the following definition: »Data, that is made available by organizations, businesses and individuals for anyone to access, use and share.«

7. True or false? Since Open data is made available by organizations, businesses and individuals for anyone to access, use and share, it doesn't need a license to be reused.

8. When we intesect Open data and Big data we get:

9. Which of the following datasets may have the most impact of any category of crossover datasets?

10. Find a challenge among the benefits of using the external data for your Big Data purposes.