The Cisco Certified Network Professional (CCNP) is the middle ground of Cisco technical certifications. The CCNP is considered proof of having the ability to work with medium-sized networks (between 100 and 500 end devices) and with technology such as QoS, broadband, VPNs, and security-minded features. To acquire a CCNP, one must pass four tests, and either re-certify or upgrade to a CCIE every three years. (The CCNA is a prerequisite.)