CCNA 101
Day 5: The Mathematical Core – IPv4 Addressing & Subnetting
The CyberSec Guru
Stop fearing subnetting. Learn the 'Magic Number' trick, memorize RFC 1918 Private IP ranges, and download our Subnetting Cheat Sheet
Day 4: The Language of Transport – TCP vs. UDP
The CyberSec Guru
The definitive comparison of TCP vs UDP. Learn the 3-Way Handshake, Flow Control, Windowing, and why VoIP needs UDP. For CCNA 200-301
Day 3: The Physical Layer – Copper, Fiber, and Finding Faults
The CyberSec Guru
Master Exam Topics Single-mode vs Multimode fiber, Cat6 cabling, PoE standards, and how to troubleshoot CRC errors, runts, and duplex mismatches.
Day 2: The Shape of Things – Mastering Network Topologies
The CyberSec Guru
Detailed comparisons of 2-Tier vs 3-Tier, the rise of Spine-Leaf in Data Centers, SOHO setups, and Cloud Architectures. Detailed diagrams included.
Day 01 – Welcome to the Network – Why Your Home Router is NOT an Enterprise Router
The CyberSec Guru
Start your CCNA 200-301 journey here. Day 1 covers Exam Topic 1.1 in depth: The specific roles of Routers, L2/L3 Switches, NGFWs, IPS, and Cisco APs.
