The HCIA-Security V4.0 certification evaluates foundational competency for network engineers in securing enterprise infrastructures using Huawei security ecosystems. Candidates must demonstrate proficiency in implementing perimeter defense mechanisms through USG series firewalls, specifically configuring access control policies, NAT, and VPN technologies including L2TP, IPsec, and SSL. The curriculum mandates deep technical understanding of intrusion prevention systems, content filtering, and anti-virus application layers. Furthermore, participants manage Huawei’s Agile Controller, implementing AAA protocols, terminal security, and user authentication frameworks. Mastery requires expertise in cybersecurity fundamentals, cryptographic standards, network defense architectures, and the orchestration of robust, scalable security policies within complex enterprise network topologies.