Exam DP-100 topic 5 question 35 discussion

Should be A

The correct answer is A. Add noise to the salary data during the analysis.

Bard says it is A

The question in unclear. If the statistics in only there to report average per city the answer is correct when the salary column is filled with the average per city. Distribution statistics will not work anymore, though. Adding noise WILL change the data ever so slightly.

Answer is A

A. Add noise to the salary data during the analysis. To apply differential privacy, you need to add noise to the salary data during analysis. Adding noise is a technique to introduce randomness to the data in a way that preserves privacy while minimizing the impact on the accuracy, completeness, and reliability of the data. Differential privacy provides a formal guarantee that the data will be protected against privacy attacks. Converting the salary data to the average column value (option D) does not provide differential privacy. This option would eliminate the salary data altogether and only show the average salary by city, but it would not preserve the statistical properties of the original data or provide any privacy protection.

it should be A, because we are adding noising to be sure we mask data

A. Adding noise that is consistent with the data is the correct answer.

Encrypting or averaging don't meet the requirement.

https://microsoft.github.io/azureml-ops-accelerator/4-Migrate/1-KeyAzureMLConceptsForOps.html#differential-privacy

should be A