In Custom Reports, what must metrics and dimensions share in order to report accurately?

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)

To recognize users across different devices, what feature must you enable?

User ID AdWords Linking Audience Definitions Attribution Models Download Google Analytics Individual Certification Exam Answers (PDF)

What report provides data on how specific sections of a website performed?

Top Events report Frequency and Recency report Location report Content Drilldown report Download Google Analytics Individual Certification Exam Answers (PDF)