Learning paths

Tracks are vendor-neutral study paths. They are not official certification courses.

Networking Fundamentals

OSI layers, IPv4 addressing, subnets, ARP, DNS basics.

0/3 missions

beginner

Cabling and link state
IPv4 addresses and masks
Same-subnet communication

Prerequisites: none

Mission: Connect two PCs in the same subnet Mission: Fix an incorrect IP / subnet Mission: Resolve a DNS failure

intermediate

Default gateways
DNS resolution vs. IP reachability

Prerequisites: Fundamentals · Beginner

Practise in the free lab

advanced

Subnetting with CIDR
Duplicate IP conflicts

Prerequisites: Fundamentals · Intermediate

Practise in the free lab

CCNA-style Routing & Switching

VLANs, trunks, static and default routing (vendor-neutral simulator).

0/2 missions

beginner

Switch ports and access VLANs

Prerequisites: Fundamentals · Beginner

Practise in the free lab

intermediate

VLAN mismatches
Trunk allowed VLANs
Default routes

Prerequisites: R&S · Beginner

Mission: Repair a VLAN mismatch Mission: Fix a missing default route

advanced

Multi-router static routing
Return-path troubleshooting

Prerequisites: R&S · Intermediate

Practise in the free lab

Enterprise IT & Windows Server

DHCP scopes, exclusions, DNS services and client configuration.

0/1 missions

beginner

ipconfig and client settings

Prerequisites: Fundamentals · Beginner

Practise in the free lab

intermediate

DHCP scopes, exclusions and exhaustion

Prerequisites: Enterprise · Beginner

Mission: Restore DHCP

advanced

DNS records and service troubleshooting

Prerequisites: Enterprise · Intermediate

Practise in the free lab

Network Security

Least-privilege firewall rules and first-match evaluation.

0/1 missions

beginner

Allow vs. deny and implicit deny

Prerequisites: Fundamentals · Intermediate

Practise in the free lab

intermediate

Rule ordering
Service-specific rules

Prerequisites: Security · Beginner

Mission: Configure a basic firewall allow rule

advanced

Segmentation design

Prerequisites: Security · Intermediate, R&S · Intermediate

Practise in the free lab

Data Center

Trunking, segmentation and server connectivity patterns.

Lab practice (missions planned)

beginner

Server addressing

Prerequisites: Fundamentals · Intermediate

Practise in the free lab

intermediate

Trunks between switches

Prerequisites: R&S · Intermediate

Practise in the free lab

advanced

Routed server segments

Prerequisites: Data Center · Intermediate

Practise in the free lab

AV-over-IP & Dante

Discovery, sample rate and clock leader concepts (teaching model).

0/17 missions

beginner

AV endpoints on a shared segment

Prerequisites: Fundamentals · Beginner

Practise in the free lab

intermediate

Discovery limits across VLANs

Prerequisites: AV · Beginner, R&S · Beginner

Mission: EDID: a 4K source on a 1080p path Mission: HDCP: protected content goes black Mission: HDMI: no picture in the classroom Mission: HDMI-CEC: touch-panel power fails Mission: Gain: a microphone that is too quiet Mission: Dante: Shure DSP sample-rate mismatch Mission: PoE vs PoE+: ceiling microphone offline Mission: PoE+: exhausted switch power budget Mission: Q-SYS: the wrong Dante receive channel Mission: Crestron: restore touch-panel binding Mission: Shure: synchronize wireless microphone channels Mission: LED: receiving-card canvas mapping Mission: Screen: powered-off display Mission: No microphone: a muted Shure channel Mission: No speaker: Phoenix output routing Mission: Echo: missing conference AEC reference

advanced

Sample rate and clock leader mismatches

Prerequisites: AV · Intermediate

Mission: Troubleshoot a Dante sample-rate / clock mismatch

CompTIA — Learning paths

CompTIA Network+ N10-009

Independent exam preparation. An educational completion record is not an official CompTIA credential.

Start

CompTIA Security+ SY0-701

Independent exam preparation. An educational completion record is not an official CompTIA credential.

Start

Networking labs