Google Analytics cannot collect data from which systems by default?

What feature would be used to collect how many times users downloaded a product catalog?

Calculated Metrics Custom Report Event Tracking Custom Dimension Download Google Analytics Individual Certification Exam Answers (PDF)

To recognize users across different devices, what is required for User ID?

Google Tag Manager A new Analytics account for reporting All of the above Sign-in that generates and sets unique IDs Download Google Analytics Individual Certification Exam Answers (PDF)

What URL tag does AdWords add to the destination URL using autotagging?

adid= gclid= urlid= utm= Download Google Analytics Individual Certification Exam Answers (PDF)