ASN Partner Needs filled by EMCIE on NAS (E20-361)

Hello,

My question is best described as as a concatenated inquiry. Here it goes:

I work with an EMC Partner wishing to sell and implement the Celerra family of products. According to this page:

https://education.emc.com:443/part/certification/framework/ie/nas.aspx

A single path for the implementation engineer is needed, that is: E20-001 -> E20-361 .

This being said, my questions are thus:

• Being an EMCPA, is the passing exam all that is needed? Rephrasing: is it true that taking any further training/course is not perforce but just strongly recommended?
• If further training is mandated:

On the same url hereinbefore, there we find a Value Pack such as one of the courses is an Instructor Led Training (NAS Operations and Management with Celerra, ID: MR-1CP-NSCA).

• Is there a Value Pack but with the instructor led training substituted with the instructor led video one (ID : MR-9VP-NSCA)?
• If the answer to this question is "no" but a training is mandatory, may one buy and study the Video instructor led training (aka MR-9VP-NSCA) and comply fully?

Thanks for bearing with me. Thanks in advance.