The Cisco Data Center certification exams only allow for the expert certification to be earned (in this case, there is no prerequisite). All other areas involve all four levels of certification: entry, associate, professional, and expert. Participants (in most cases) are only required to take and pass one of the available exams to earn that level’s certification (in some cases, only one exam is available). Before taking the exam for a higher level, the certifications of the previous levels must first be earned. This format requires a larger amount of commitment from individuals looking to earn the expert certification. For this same reason, the expert certification is much more valued within the IT/networking profession and will lead to more career opportunities.
The Cisco Learning Network website offers more knowledge on the certification tests. It is suggested that participants become familiar with the exams, the subject areas, and all related training materials (including the highly-helpful TestsLive.com’s study resource) before moving forward.