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The tool that can display TCP/IP configuration settings on a Windows machine is IPconfig. This command-line utility provides a straightforward way to retrieve various network configuration details, including the IP address, subnet mask, and default gateway for each network adapter on the device. When you enter "ipconfig" in the Command Prompt, it lists the current configuration, making it highly useful for troubleshooting network connectivity issues.

The functionality of IPconfig is particularly important for IT professionals and technicians who need to monitor and configure network settings efficiently. It also allows for additional parameters, such as "ipconfig /all," which gives a more comprehensive view by displaying details related to DHCP leases, DNS settings, and more.

Other tools listed have their specific uses, but they do not serve the same purpose as IPconfig when it comes to showing detailed TCP/IP settings on Windows systems.