Your friend hasn't given VCP4-DCV or VCP-Cloud?
In your friend's case if he is VCP4-DCV
He can take one of the above courses that i just mentioned and write VCP-Cloud exam and become VCP-Cloud certified.
Or Take up vSphere what's new 5.1 and get VCP5-DCV certification and then write VCP-IaaS and get VCP-Cloud certification.