Networking & Telecommunications
Connecting everything together — LAN to WAN to the world
Network APIs, Ansible for networking, network source of truth, intent-based networking, and streaming telemetry.
OSI model, TCP/IP, subnetting, IP addressing, NAT, and PAT — the fundamental concepts underlying all network communication.
Firewalls, IDS/IPS, network access control, VPN, microsegmentation, and zero trust network access.
DNS, DHCP, IPAM, load balancing and application delivery controllers, proxy services, and network time synchronization.
Static and dynamic routing protocols including OSPF, BGP, EIGRP, IS-IS, route redistribution, filtering, and policy-based routing.
SD-WAN platforms and architecture, overlay networking, and SASE/SSE integration for modern WAN.
VLANs, trunking, STP/RSTP/MST, EtherChannel/LACP, first-hop redundancy protocols, and Layer 2 security.
VoIP and telephony, video conferencing and AV, and contact center technologies.
MPLS, segment routing, DMVPN/GRE, QoS, and traffic engineering for wide area network connectivity.
RF fundamentals, Wi-Fi (802.11), site surveys, cellular/5G/LTE, point-to-point wireless, and IoT wireless technologies.