What report shows the percent of site traffic that visited previously?

To view accurate data in a Custom Report, what action should be avoided?

Create a report with Custom Metrics Use a Custom Dimension as a primary dimension Pair metrics and dimensions of different scopes Use multiple dimensions together in the same report Download Google Analytics Individual Certification Exam Answers (PDF)

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 feature must you enable?

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