640-553 CCNA Security Certification Exam IINS meets the needs of IT professionals who are responsible for network security. It confirms an individual’s skills for job roles such as Network Security Specialists, Security Administrators, and Network Security Support Engineers. This certification validates skills including installation, troubleshooting and monitoring of network devices to maintain integrity, confidentiality and availability of data and devices and develops competency in the technologies that Cisco uses in its security structure

The CCNA Security is valid for three years. To recertify, Pass any current CCNA concentration exam (wireless, security, voice) OR pass a current 642 professional exam, OR pass the current CCIE written exam or the current CCDE written exam.