CCNA Quick-Revision Map

I’ve been going through a “Cisco CCNA Summary” deck that’s built for fast recall + hands-on practice — it compresses the topics you actually touch in Packet Tracer / real configs into a clean, visual flow.

What I liked most: it connects concepts → commands → verification, so you’re not memorizing in isolation.

Here are the chunks that make it bookmark-worthy:
✅ OSI 7 Layers refresher (with examples that stick)
✅ Subnetting / prefixes (the mental model + practice patterns)
✅ Core CLI muscle memory (interface, hostname, saving config, show commands)
✅ VLANs + Trunking (access vs trunk, allowed VLANs, native VLAN, dot1q)
✅ STP (roles, states, root bridge logic, PVSTP + verification)
✅ EtherChannel (LACP vs PAgP, why it matters, how to verify Po interfaces)
✅ Routing basics

Static routing (2–4 router scenarios)
Dynamic routing overview + EIGRP / OSPF step-by-step flow

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