A new Custom Channel Group may be applied retroactively to organize data that has been previously collected.

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 does Google Analytics prohibit collecting?

Billing city Personally identifable information Purchase amount Product SKU(s) Download Google Analytics Individual Certification Exam Answers (PDF)

What report compares metrics based on user acquisition date over a series of weeks?

User Explorer Users Flow Active Users Cohort Analysis Download Google Analytics Individual Certification Exam Answers (PDF)