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Difficulty: MediumMicrosoft Command-Line Tools

A network technician is troubleshooting a Windows client workstation that lost network and internet access following a local router maintenance task. The technician needs to follow a standard, inside-out command-line diagnostic process to isolate the failure point.

Place the following Windows command-line actions in the correct logical troubleshooting order from first step to last step.

  1. 1Run `ipconfig /all` to review local IP parameters, subnet mask, default gateway, and assigned DNS servers.
  2. 2Run `ping 127.0.0.1` to test the internal TCP/IP protocol stack on the network interface card.
  3. 3Run `ping 192.168.1.1` to verify local subnet connectivity to the default gateway router.
  4. 4Run `nslookup www.example.com` to test domain name resolution services.
  5. 5Run `tracert 8.8.8.8` to identify path hops and determine where external packet loss occurs.

Answer

The correct logical troubleshooting sequence is: 1) Run `ipconfig /all` to inspect local interface configuration, 2) Run `ping 127.0.0.1` to verify internal TCP/IP stack integrity, 3) Run `ping 192.168.1.1` to test local gateway reachability, 4) Run `nslookup www.example.com` to check DNS name resolution, and 5) Run `tracert 8.8.8.8` to trace the external network path.
Systematic network troubleshooting follows an inside-out progression: first verify local adapter configuration details (`ipconfig /all`), validate internal TCP/IP software stack operation (`ping 127.0.0.1`), verify local gateway reachability (`ping 192.168.1.1`), test DNS host resolution (`nslookup`), and finally trace path hops to remote destinations (`tracert`).

Step-by-Step Solution

1
Inspect local client IP configuration
Retrieve IP address, subnet mask, default gateway, and DNS server details using `ipconfig /all`.
You must establish whether the machine has acquired valid networking parameters before generating diagnostic network traffic.
2
Verify internal protocol stack operation
Send ICMP echo requests to `127.0.0.1`.
Confirms that the internal network adapter software stack and protocol drivers are operational.
3
Verify local area network segment reachability
Send ICMP echo requests to the default gateway IP (`192.168.1.1`).
Tests physical cabling/wireless links and local router interface responsiveness.
4
Test domain name resolution service
Query host names using `nslookup www.example.com`.
Determines whether network issues stem from DNS resolution failures versus IP connectivity issues.
5
Isolate external WAN routing failure points
Trace network hops to a public IP using `tracert 8.8.8.8`.
Identifies the exact external gateway or hop where traffic is delayed or dropped.

Key Concept

Command-Line Network Diagnostic Workflow
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Topics

Microsoft Command-Line Tools

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