CISSP®- The National Institute of Standards and Technology (NIST) Special Publication (SP) 800-53 Revision 4

The video tutorial covers various network security protocols, starting with the challenges of securing IPV4 networks. It discusses legacy authentication protocols like PAP and CHAP, highlighting their vulnerabilities. The tutorial then explains the Extensible Authentication Protocol (EAP) and its variations, emphasizing their use in modern networks. It also covers point-to-point protocols such as SLIP and PPP, and concludes with an overview of Virtual Private Networks (VPNs) and their advantages over older protocols.

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