Q: You have two versions of the same content in HTML (on the website and in PDF). What is the best solution to bringing a user to the site with the full navigation instead of just downloading a PDF file?
A) Using the X-robots rel=canonical header
B) Introducing hreflang using X-Robots headers
C) Using the X-robots-tag and the noindex attribute
Correct Answer is A) Using the X-robots rel=canonical header.