A01
Network Fundamentals & the OSI / TCP-IP Model
The reference models, encapsulation and end-to-end packet flow that every later module assumes.
Track A10 modules · 70 production-grade assets
Wired & Enterprise Infrastructure
The routing-and-switching backbone every AI, cloud and campus network is still built on.
10 modules, sequenced foundation → design 7 assets per module — theory always ships with a lab Career ladder with salary bands at every rung
What this track covers
One focus. One measurable outcome.
Focus
From OSI/TCP-IP fundamentals through internet-scale BGP, MPLS and network automation — the load-bearing foundation every other track stands on.
Graduate outcome
Graduate can design, configure and troubleshoot a resilient enterprise campus and drive it programmatically — mapping to the ~14,165 Network Engineer roles live on Naukri today.
Syllabus
10 modules, in the order you'll master them.
Each module is a complete unit of competence — sequenced so every later module stands on the one before it, and every one ships the same seven production-grade assets.
A02
Ethernet, Switching & VLANs
L2 forwarding, VLAN segmentation, trunking and the switching fabric of the enterprise access layer.
A03
Spanning Tree, Link Aggregation & L2 Resiliency
Loop-free topologies, RSTP/MSTP, LACP port-channels and building resilient L2 domains.
A04
IP Addressing, Subnetting & IPv6
VLSM, summarisation and dual-stack IPv6 addressing for modern enterprise and DC networks.
A05
Routing Fundamentals & Static Routing
The forwarding/control-plane split, longest-prefix match and deterministic static design.
A06
OSPF & IS-IS Link-State Routing
Areas, LSAs, SPF and scaling link-state IGPs across large enterprise and DC underlays.
A07
BGP & Internet-Scale Routing
eBGP/iBGP, path attributes, policy and the protocol that runs the internet and the DC underlay.
A08
Enterprise Services: DHCP, DNS, NAT & QoS
The services layer that makes a network usable — addressing, name resolution, translation and prioritisation.
A09
Network Automation: NETCONF/YANG, gNMI & Python
Model-driven configuration and telemetry — automating the network you just learned to build by hand.
A10
Enterprise Campus Design & Troubleshooting
End-to-end campus architecture, high availability and a structured troubleshooting methodology.
The 7-asset system
Every module ships the same seven assets — 70 across this track.
You never get theory without a lab, a lab without commands, or a command without a way to verify it worked. Each of the 10 modules in Track A delivers all seven — closing with a 5-part workbook that hardens you for the exam and the job interview alike.
How the method worksStudy Guide
Focused conceptual grounding, scoped precisely to what the lab will exercise.
Lab Guide
Hands-on, step-by-step builds on real topologies — configure the actual technology, not a simulation.
Command Guide
A working reference of the exact CLI/API syntax used in the lab — muscle memory, not abstraction.
Glossary
Module-specific terminology that closes the language gap between generalist and specialist.
Solution Guide
Fully worked answers and reference configurations so learners self-correct and understand the reasoning.
Lab Outcomes & Verification
Explicit success criteria — the learner proves the lab works and produces evidence of competence.
5-Part Workbook
Exam-ready hardening: Foundations → Terminology → Concept Mastery → Design Challenges → Exam Simulation.
Career ladder
Where Track A takes you — with the salary band at each rung.
01Entry · 0-2 yrs
NOC / L1-L2 Support Engineer
Rs 3-5.5 LPA
02Mid · 2-5 yrs
Network Engineer (L2/L3)
Rs 6-12 LPA
03Senior · 5-8 yrs
Network Design / Automation Engineer
Rs 12-22 LPA
04Architect · 8+ yrs
Network Architect / TME
Rs 18-38 LPA
The foundation for every stream
Track A is the load-bearing layer under all three certification ladders.
Routing, switching and automation underpin the Wireless, DataCenter and Security streams alike — master Track A, then ladder into the certification stream that matches where you want to specialise.
10 modules. 70 assets. One track — deployable on day one.
The routing-and-switching backbone every AI, cloud and campus network is still built on.