Becoming a VMware Certified Professional (VCP) is your first step toward gaining expertise in virtual infrastructure and the industry recognition that follows. This certification is designed to teach you what you need to successfully install, manage and deploy VMware vSphere 4. A VMware authorized instructor-led course is required.
There are various paths to VCP4 based on your experience. Chose your path and complete the three validation components:

One of the following VMware courses are required for the VCP certification:
VMware Certified Professional benefits include: recognition in the industry, distinction for partners, credential that consulting clients can trust, use of “VMware Certified Professional” logo on business cards and websites, and complementary license of VMware Workstation.
VMware is no longer granting the VCP certification on VMware Infrastructure 3. VMware IT Academy students already on the VCP3 track must complete their examinations by December 31, 2010.