What data is Google Analytics Goals unable to track?

Which user characteristic may NOT be used to change keyword bids in Google Ads?:

time of day location device ad preference Download Google Analytics Individual Certification Exam Answers (PDF)

What is used to create Smart Goals?

Remarketing audience Custom Reports Machine-learning algorithms Analytics Goals Download Google Analytics Individual Certification Exam Answers (PDF)

When will Google Analytics be unable to identify sessions from the same user by default?

When the sessions happen in different browsers on the same device When the sessions happen in the same browser on the same day When the sessions happen in the same browser on the same device When the sessions share the same browser cookie Download Google Analytics Individual Certification Exam Answers (PDF)