Which reports indicate how traffic arrived at a website?

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 report shows the percent of site traffic that visited previously?

Referrals report Frequency & Recency report New vs Returning report Sales Performance report Download Google Analytics Individual Certification Exam Answers (PDF)

What feature is required to track customer search terms on a website?

Site Search Data Import Enhanced Ecommerce Search filters Download Google Analytics Individual Certification Exam Answers (PDF)