Gained a solid foundation in networking concepts such as IP addressing, subnetting, IPv4/TCP headers, OSI layers, Layer 2 and Layer 3 devices, and routing protocols (Static, RIP, OSPF, and BGP). Developed practical skills in configuring VLANs, DHCP servers, DNS servers, IPsec tunnels, NAT (source/destination), ACLs (standard/extended), and troubleshooting with Wireshark.Additionally, acquired knowledge in firewall technologies, focusing on Palo Alto Networks, including configuring security policies, managing zones, and setting up VPNs. Gained experience in basic network security principles, such as intrusion detection/prevention, and handling traffic monitoring and filtering to enhance network protection.