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

What asset is used to build a remarketing list?

Custom Segment Custom Dimension Custom Metric Custom Report Download Google Analytics Individual Certification Exam Answers (PDF)

What feature is required to collect the number of comments users posted to a web page?

Custom Metric Custom Channel Groupings Custom Dimension Calculated Metric Download Google Analytics Individual Certification Exam Answers (PDF)

What data table display compares report metrics to the website average?

Percentage Pivot Comparison Performance Download Google Analytics Individual Certification Exam Answers (PDF)