Zero to CCNA, in order
This path is sequenced by dependency, not by Cisco's domain numbers. Module 0 covers everything the official blueprint assumes but never lists - if you are a complete beginner, that is your starting block. Each lesson carries verified, exam-relevant facts; drill icons jump you to live practice.
- M0
Foundations - the on-ramp
Everything the exam assumes but never lists. If you are a complete beginner, START HERE - without it, the blueprint topics will not make sense.
11 lessons · domain Pre-1.0 (assumed prerequisite) - M1
Network Fundamentals
Components, topologies, cabling, transport (TCP/UDP), wireless principles, virtualization, switching concepts.
7 lessons · domain 1.0 (20%) needs M0 - M-SUB
IP Addressing & Subnetting
The speed engine. Subnetting fast and correctly is the single make-or-break CCNA skill. Drill it until it is reflex.
9 lessons · domain 1.6–1.10 (within 1.0) needs M0, M1 - M2
Network Access - Switching, VLANs, STP
VLANs, trunking, discovery, EtherChannel and Spanning Tree. The layer-2 heart of the exam.
6 lessons · domain 2.0 (20%) needs M0, M1 - M3
IP Connectivity - Routing & OSPF
The biggest domain. Reading the routing table, the forwarding decision, static routes, and single-area OSPFv2 (the only routing protocol you configure).
5 lessons · domain 3.0 (25%) needs M0, M1, M-SUB - M4
IP Services
NAT, DHCP, DNS, NTP, SSH, syslog, SNMP, QoS, file transfer. Know the role and the port for each.
9 lessons · domain 4.0 (10%) needs M0, M1, M-SUB, M3 - M5
Security Fundamentals
Threats, device hardening, AAA, ACLs, layer-2 security and wireless security.
7 lessons · domain 5.0 (15%) needs M0, M1, M-SUB, M2, M4 - M6
Automation & Programmability
SDN, controllers, REST APIs, JSON, Ansible/Terraform, and the new v1.1 AI/ML-in-networking topic.
6 lessons · domain 6.0 (10%) needs M0, M1, M3
This app makes you strong on the written/knowledge portion of CCNA. The exam also has hands-on configuration labs (about a third of its difficulty). Practice those in the free official Cisco Packet Tracer - an in-browser CLI lab simulator is on this app's roadmap.