Occasionally I get the question if you can update candidate EEO information. The answer is yes but it’s tricky. The key is in Doc ID 1047686.1 which states:
To import Diversity Answers, a unique ID is necessary for both Question and PossibleAnswer. Unfortunately, the Code does not enforce uniqueness, so sometimes another field is needed to use in imports. The field Number is available for both PossibleAnswer and Question entities even if it isn’t presented in the feature pack. To use them, just drag another field from the entity and edit the Path to Number.
Run an export on Possible Answer and Question numbers in order to know what IDs to use in your imports.