21. When a many-to-many relationship is found between two tables in a relational database it is necessary to create a _______ to link the two tables together to eliminate the many-to-many relationship. a.New columnb.New rowc.New tabled.New database 22. Airbnb is a marketplace that connects owners of an unused space (e.g., a house) with the people who are looking for such space. It is an example of what is called _____________. 23. While looking for anew smartphone you browse through the website of a smartphone manufacturer to gain information about the pros and cons of their smartphones. You may be concerned about the ____ of information on such a site. 24. According to the talk by Erik Brynjolfsson titled “The key to growth? Race with the machine”, the current winner of the freestyle chess championship is:
25. According to the talk by Erik Brynjolfsson titled “The key to growth? Race with the machine” the new machine age is more about _____ than physical production. a.Proceduresb.Knowledge creationc.Storage capacityd.Media files 26. According to the talk by Rachel Botsman, the advances in information technologyare making it easier for us to share goods and services by increasing __________. 27. Many companies have used better information flow (enabled by information systems) to _____________. 28. An online movie rental service has a database with a table called “Customer” for storing details about their customers. They also have a table named “DVD” to store details of each DVD (copy) that they own. The rental service would also liketo store data on who has rented which DVD over time. The relationship between “Customer” and “DVD” tables is likely to be:
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- Foreign key, primary key, strategic planning process, foreign key columns, d. Cuttingedge information