The H12-711-ENU HCNA-Security-CBSN exam covers network security basis, firewall basis such as package filter, NAT, etc. and VPN technologies such as IPSec, SSL etc., as well as their implementation in Huawei firewall products, firewall user management technology, UTM technology and implementation and also terminal security with security policy configurations. HCNA-Security H12-711-ENU exam questions are good