When analyzing user data, how is differential privacy applied?

1. A. By injecting noise into aggregated datasets.
2. B. By assessing differences between datasets.
3. C. By applying asymmetric encryption to datasets.
4. D. By removing personal identifiers from datasets.

Correct Answer: A

A company seeking to hire engineers in Silicon Valley ran an ad campaign targeting women in a specific age range who live in the San Francisco Bay Area.
Which Calo objective privacy harm is likely to result from this campaign?

1. A. Lost opportunity.
2. B. Economic loss.
3. C. Loss of liberty.
4. D. Social detriment.

Correct Answer: D

What privacy risk is NOT mitigated by the use of encrypted computation to target and serve online ads?

1. A. The ad being served to the user may not be relevant.
2. B. The user’s sensitive personal information is used to display targeted ads.
3. C. The personal information used to target ads can be discerned by the server.
4. D. The user’s information can be leaked to an advertiser through weak de-identification techniques.

Correct Answer: D

You are a wine collector who uses the web to do research about your hobby. You navigate to a news site and an ad for wine pops up. What kind of advertising is this?

1. A. Remnant.
2. B. Behavioral.
3. C. Contextual.
4. D. Demographic.

Correct Answer: B