# Security fundamentals

- [Define key security concepts](https://ccna-certification.certs-study.com/security-fundamentals/define-key-security-concepts.md)
- [Describe security program elements](https://ccna-certification.certs-study.com/security-fundamentals/describe-security-program-elements.md)
- [Configure device access control using local passwords](https://ccna-certification.certs-study.com/security-fundamentals/configure-device-access-control-using-local-passwords.md)
- [Describe security password policies elements, such as management, complexity, and password alternati](https://ccna-certification.certs-study.com/security-fundamentals/describe-security-password-policies-elements-such-as-management-complexity-and-password-alternati.md)
- [Describe remote access and site-to-site VPNs](https://ccna-certification.certs-study.com/security-fundamentals/describe-remote-access-and-site-to-site-vpns.md)
- [Configure and verify access control lists](https://ccna-certification.certs-study.com/security-fundamentals/configure-and-verify-access-control-lists.md)
- [Configure Layer 2 security features](https://ccna-certification.certs-study.com/security-fundamentals/configure-layer-2-security-features.md)
- [Differentiate authentication, authorization, and accounting concepts](https://ccna-certification.certs-study.com/security-fundamentals/differentiate-authentication-authorization-and-accounting-concepts.md)
- [Describe wireless security protocols](https://ccna-certification.certs-study.com/security-fundamentals/describe-wireless-security-protocols.md)
- [Configure WLAN using WPA2 PSK using the GUI](https://ccna-certification.certs-study.com/security-fundamentals/configure-wlan-using-wpa2-psk-using-the-gui.md)


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