LearnSTEP 1 OF 9
Understanding IPv4 Addressing & Subnetting
Understand IP addresses, masks, binary, subnet boundaries, gateways, VLSM, and route selection.
YOU'LL BE ABLE TOExplain which subnet contains an address and when traffic needs a gateway.
LEARNING PATH / NETWORKING
Networking Foundations.
From your first IP address to a real connectivity investigation.
Understand addressing and essential network services, practice the calculations, and troubleshoot an actual-looking workstation incident.
9 learning milestonesBeginner-friendlyNo account required
YOUR LEARNING JOURNEY
Follow the steps. Build the skill.
You can open any step at any time. Mark activities complete when you're satisfied you've learned or practiced them—there are no locked lessons.
PracticeSTEP 2 OF 9
IPv4 Subnetting & Routing · Module 004
Put the theory to work in CIDR decoding, VLSM planning, and routing questions.
YOU'LL BE ABLE TOCalculate address ranges and identify forwarding decisions independently.
LearnSTEP 3 OF 9
DHCP & DNS Fundamentals
Learn how network settings are assigned and how names become IP addresses.
YOU'LL BE ABLE TODescribe DORA and distinguish address assignment from name resolution.
PracticeSTEP 4 OF 9
DHCP & DNS · Module 002
Practice detecting configuration and resolution problems from evidence.
YOU'LL BE ABLE TOIdentify the next sensible check when an IP or DNS failure appears.
LearnSTEP 5 OF 9
Switching Fundamentals: From Ethernet Frames to VLANs
Learn source MAC forwarding, VLAN boundaries, 802.1Q trunks and STP with an interactive frame simulator.
YOU'LL BE ABLE TOPredict when the switch floods or forwards, and explain how VLAN and STP state affect the path.
PracticeSTEP 6 OF 9
Switching Fundamentals · Module 001
Reinforce MAC learning, forwarding decisions, VLANs, and local network behavior.
YOU'LL BE ABLE TOExplain how a switch forwards frames and how VLANs divide local networks.
LabSTEP 7 OF 9
The Silent Workstation · Beginner Lab
Investigate a workstation that loses network access after a desk move.
YOU'LL BE ABLE TOUse the evidence to narrow down the fault before choosing a fix.
LabSTEP 8 OF 9
The Missing VLAN · Intermediate Lab
Investigate a connected interswitch uplink that isn't carrying the Finance VLAN, then make and verify an additive allowed-VLAN correction.
YOU'LL BE ABLE TOCorrelate access-port, trunk, and STP evidence and verify that neighboring VLANs still work.
TroubleshootSTEP 9 OF 9
VLAN / Trunking Problems Investigation
Open “VLAN / Trunking Problems” directly in the Troubleshooter to inspect VLAN membership, trunks, STP and MAC learning while building ticket-ready notes.
YOU'LL BE ABLE TOUse structured checks to isolate a VLAN problem before making configuration changes.
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Revisit any resource as often as you need. Completion is a personal reminder, not an exam score or verified certificate.
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