The united nations hires a global firm to study digital communications around the world. here is what that firm wrote based on its research.

many people in the world have little experience with computers, and only one-fifth of the world’s population has internet access. the differences in the ability to use this technology make it challenging to reach people from around the world.

the firm’s findings are best described as the

digital divide.
inequality divide.
internet divide.
computer divide.

Suppose you are an ad-serving company and you maintain a log of cookie data for ads you serve to the web pages for a particular vendor (say amazon). a. how can you use this data to determine which are the best ads? b. how can you use this data to determine which are the best ad formats? c. how could you records of past ads and ad clicks to determine which ads to send to a given ip address? d. how could you use this data to determine how well the technique you used in your answer to part c was working? e. how could you use this data to determine that a given ip address is used by more than one person? f. how does having this data give you a competitive advantage vis-à-vis other ad-serving companies?