Cisco

Cisco Career Certifications are IT Professional certifications for Cisco Systems products. The tests are administered by Pearson VUE. The widely respected IT certification programs available through Cisco Certifications bring valuable, measurable rewards to network professionals, their managers, and the organizations that employ them. These professionals can plan, design, connect, maintain and troubleshoot small, medium to large networks. Cisco Certifications are varied with Cisco CCNA, CCNP and CCIE certifications being the most sought after by the industry.

The basic Cisco Certification Hierarchy is like this:

The advanced Cisco Certification Hierarchygoes like this:
Five Levels of IT Certification
Cisco offers five levels of general IT certification: Entry, Associate, Professional, Expert and Architect, the highest level of accreditation within the Cisco Career Certification program.