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Network Troubleshooting Visualizer

Interactive Learning Tool | Network+ Domain 5

The 7-Step Troubleshooting Methodology

Click on each step to learn more about it:

1
Identify
2
Theory
3
Test
4
Plan
5
Implement
6
Verify
7
Document

Click a step above to see details

Each step in the troubleshooting methodology serves a specific purpose. Memorize this order for the exam!

Command Simulator

Commands

ping - Test Network Connectivity

Tests basic connectivity using ICMP Echo Request/Reply packets.

Common options: -t (continuous), -n [count], -l [size]

Microsoft Windows [Version 10.0.19045] (c) Microsoft Corporation. All rights reserved. C:\Users\Admin>
C:\>

Ping Sequence Diagnostic

The classic troubleshooting sequence. Click each step to simulate testing:

127.0.0.1
Loopback
→
Own IP
NIC Test
→
Gateway
Local Net
→
Remote IP
Routing
→
Hostname
DNS

Click each step in order to diagnose where a problem might be

Each step tests a different layer of the network stack. If a step fails, the problem is likely at that layer.

Hardware Troubleshooting Tools

Click on a tool to learn about it:

Cable Tester
Tone Generator
Loopback Plug
Multimeter
Spectrum Analyzer
TDR/OTDR

Select a tool above

Learn about the hardware tools used for network troubleshooting.

Interactive Troubleshooting Scenarios

Scenarios