(This is a full-stage course of HCIA-HCIP-HCIE Security, but in the HCIE part, there is no in-depth explanation of IE-level security technology, only the theory and security infrastructure of IE, which requires students to pay attention. The course focuses on the security content of HCIA and HCIP Security. Although this three-stage course is not the latest course this year, it is still of great reference value. Very important for actual combat and experimentation. Reference.)
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