OSI / TCP-IP Models
Layered architecture, responsibilities of each layer, encapsulation, and how protocols map between OSI and TCP/IP.
CCNA & Networking Topics
Subnetting • IPv4 & IPv6
IP addressing, CIDR, VLSM, IPv6 notation, subnet design, and migration considerations.
Switching • VLANs • STP
Switch operations, frame forwarding, VLAN segmentation, trunking, Spanning Tree basics and rapid STP modes.
Routing Basics
Static routing, basic dynamic routing concepts, routing tables, and an introduction to OSPF/EIGRP/Routing decisions.
DHCP • DNS • NAT
Core network services: dynamic IP assignment, name resolution, NAT/PAT and how they enable internet access.
Access Control Lists (ACLs)
Traffic filtering using standard and extended ACLs, applying ACLs on interfaces, and common use-cases.
Wireless Fundamentals
Wi-Fi standards, SSIDs, security (WPA2/WPA3), RF basics, and simple WLAN design & troubleshooting approaches.
WAN Fundamentals
WAN topologies, serial links, PPP/HDLC, basic VPN concepts and common WAN connection types used in enterprise networks.
Security & Hardening
Device hardening, secure management (SSH), AAA basics, and foundational network security best practices.
Troubleshooting & Tools
Packet tracer labs, traceroute/ping/show commands, interface debugging, and structured troubleshooting methodology.
Network Automation (Intro)
Fundamentals of scripting for network tasks, config backups, and basic automation concepts (intro-level, vendor-neutral).