The CCNA Security certification confirms that you have the associate-level knowledge and skills to secure networks. It validates that you have the skills to develop a security infrastructure, recognize threats and vulnerabilities to networks, and mitigate security treats.
Cisco IINS v3.0 - Implementing Cisco IOS Network Security, one Exam (*plus prerequisites)
Exam 210-260 - Implementing Cisco IOS Network Security (IINS)
*Also required: any valid CCENT, CCNA Routing and Switching or any CCIE certification
Cisco certifications are valid for 3 years. To maintain your certification you must: Pass the latest version for your current certification or pass any higher certification.