Which metric reports on how often a channel contributes to a conversion prior to last-click attribution?

Which parameters can be included with an event hit for reporting?

Category, Action, Label, Total Events Category, Action, Label, Unique Events Event, Category, Action, Label Category, Action, Label, Value 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)

Which three campaign parameters are recommended to manually track campaigns?

Campaign, Content, and Term Medium, Source, and Content Medium, Source, and Campaign Source, Content, and Term Download Google Analytics Individual Certification Exam Answers (PDF)