Google Analytics cannot collect data from which systems by default?

What report shows which web pages get the most traffic and highest engagement?

Frequency and Recency report Active Users report All Pages report Engagement report Download Google Analytics Individual Certification Exam Answers (PDF)

If a user watches a video with event tracking three times in a single session, Analytics will count how many Unique Events?

2 1 3 6 Download Google Analytics Individual Certification Exam Answers (PDF)

What would prevent data from appearing in a Custom Report?

Too many metrics in a Custom Report A filter that removes all the data Too many dimensions in a Custom Report Custom Report isn’t shared with users in the same view Download Google Analytics Individual Certification Exam Answers (PDF)