Amalgamated topic notes
26 CCNA topics organized by exam domain. Each page is a single unified guide — not side-by-side copies — synthesized from Panagiss CCNAmd, jdepew88 markdown, and psaumur CCNA Course Notes(wireless & WAN), with links back to source files on GitHub.
Source markdown repositories
Topics were mapped across Panagiss, jdepew88, and p-saumur course notes, compared for overlap, and merged into one guide per exam topic.
Fundamentals
OSI model, devices, cabling, and addressing foundations.
OSI Model & Packet Flow
Both sources mergedLayer responsibilities, PDUs, encapsulation, and end-to-end traffic flow.
Network Devices & Cabling
Three sources mergedRouter, switch, firewall roles, copper/fiber cabling, and physical vs logical topology.
IP Addressing & Subnetting
Three sources mergedIPv4 classes, private ranges, CIDR, VLSM context, and hexadecimal for networking.
Router & Switch Configuration
Three sources mergedInitial setup, VLANs on switches, router-on-a-stick, static routes, and verification.
Layer 2 Switching
VLANs, trunks, STP, EtherChannel, and switch security.
VLANs, Trunks & DTP
Three sources mergedBroadcast domains, 802.1Q, native VLAN, voice VLAN, VTP awareness, and DTP negotiation.
Spanning Tree & EtherChannel
Both sources mergedLoop prevention, port roles, Rapid PVST+, and link aggregation.
Switch Security
Three sources mergedPort security, DHCP snooping, DAI, and BPDU Guard.
Voice VLAN & IP Telephony
Three sources mergedVoice VLAN, Cisco IP phones, CUCME basics, and QoS priority for voice.
Routing
Static and dynamic routing, OSPF, EIGRP, and first-hop redundancy.
Routing Protocols Overview
Three sources mergedDistance vector vs link state, administrative distance, and protocol selection.
OSPF & OSPFv3
Both sources mergedLink-state operation, neighbors, LSAs, single-area OSPF, and OSPFv3 for IPv6.
EIGRP
Both sources mergedDUAL, feasible successor, metrics, and EIGRP for IPv6 basics.
HSRP & First-Hop Redundancy
Both sources mergedActive/standby routers, priorities, preempt, STP alignment, and FHRP virtual MAC mnemonics.
IP Services
NAT, IPv6, DHCP, DNS, and quality of service.
NAT & PAT
Three sources mergedStatic NAT, dynamic NAT, PAT overload, and inside/outside interfaces.
IPv6 Implementation
Three sources mergedAddressing, SLAAC, DHCPv6, transition mechanisms, routing, and IPv6 ACLs.
DHCP
Both sources mergedDORA process, DHCP relay, router DHCP server, and snooping context.
Quality of Service (QoS)
Three sources mergedClassification, marking, queuing, shaping, and trust boundaries.
Security
ACLs, device hardening, threats, and management plane protection.
Access Control Lists
Three sources mergedStandard vs extended ACLs, wildcard masks, placement, and named ACLs.
Device Security & Management
Three sources mergedSSH, passwords, AAA, SNMP, Syslog, and management plane protection.
Security Threat Landscape
Both sources mergedCommon attacks, malware types, and defense strategies at CCNA scope.
Wireless & WAN
Four wireless guides (fundamentals, architectures, GUI config, security) plus WAN/VPN.
Wireless Fundamentals
Three sources merged802.11 RF, channels, service sets, and distribution system basics.
Wireless Architectures
Both sources merged802.11 frames, autonomous vs lightweight APs, CAPWAP, split-MAC, and WLC deployments.
Wireless Configuration & WLC GUI
psaumurWLC ports/interfaces, GUI WLAN workflow, WPA2-PSK, QoS profiles, and client verification (exam 2.9, 5.10).
Wireless Security
Three sources mergedWEP through WPA3, 802.1X/EAP, PSK vs enterprise, and integrity protocols.
WAN, VPN & GRE
Three sources mergedWAN link types, MPLS roles, site-to-site IPsec, GRE tunnels, and remote-access VPN.
Automation & Cloud
REST APIs, JSON, SDN, DNA Center, and network programmability.
Network Automation & APIs
Three sources mergedControllers, REST APIs, JSON payloads, and southbound/northbound interfaces.
Cloud, SDN & Cisco DNA
Three sources mergedCloud delivery models, SDN architecture, and DNA Center overview.