Huawei Certified Junior Network Engineer (HCIA) is a basic level computer network certification, introduced by Huawei Technologies Co. The certification is aimed at computer network professionals, and is designed to validate their mastery of computer network fundamentals and basic configuration, maintenance, and troubleshooting skills of network equipment.HCIA certification covers the following areas of knowledge and skills: network fundamentals: including the OSI reference model, the TCP/IP protocol family, subnetting, and routing protocols, etc. Ethernet fundamentals: including Ethernet protocols, MAC addresses, and switch principles. Ethernet fundamentals: including Ethernet protocols, MAC addresses, switch principles. Routing and Switching Fundamentals: including VLAN technology, STP protocol, router configuration and management. Network Security Fundamentals: including firewall, NAT, VPN technology, etc. WLAN Fundamentals: including basic concepts of WLAN, configuration of wireless access point, WLAN security, etc. IPv6 Fundamentals: including basic concepts of IPv6, IPv6 address planning, IPv6 configuration, etc. By earning the HCIA certification, you can demonstrate that you have basic network engineer skills and are able to provide effective support in deploying, configuring, and troubleshooting the infrastructure of an organization's network. In addition, HCIA certification provides you with better career development and advancement opportunities.