What channel is not included in the default Channels report?

What is a “secondary dimension” in Google Analytics?

An additional report dimension for more specific analysis An additional report metric for more specific analysis A dashboard widget that offers more specific analysis A visualization to understand the impact of data Download Google Analytics Individual Certification Exam Answers (PDF)

Which reports indicate how traffic arrived at a website?

Geo Behavior Demographics All Traffic Download Google Analytics Individual Certification Exam Answers (PDF)

What report shows which types of mobile devices visited a website?

All Traffic > Source/Medium report Site Content > Landing Page report Mobile > Devices report Technology > Network report Download Google Analytics Individual Certification Exam Answers (PDF)