EX200 - Red Hat's New Cert Structure

I was trying to understand the new cert structure to answer my own question, but if anything it confused me more.

In the overview of the EX200 exam, under 'prerequisites', it states:
"Have either taken Red Hat System Administration I (RH124) and Red Hat System Administration II (RH134) or the RHCSA Rapid Track course (RH199)"

Now, in the 'What you need to know' tab under 'Preparation', it say:
"Red Hat encourages you to consider taking Red Hat System Administration I (RH124) and Red Hat System Administration II (RH134) to help prepare."

Is it required or encouraged???