What is the primary function of the dxdiag utility?

The dxdiag utility, also known as DirectX Diagnostic Tool, is primarily designed to test and provide information about the system's multimedia capabilities. It gathers and displays diagnostic information about the DirectX components of the system, covering graphics, sound, and other multimedia functionalities. This tool is particularly useful for troubleshooting issues related to games and multimedia applications, as it can provide details like the version of DirectX installed, graphics card information, and audio devices. By evaluating these components, users can ensure that their systems are properly configured for optimal multimedia performance, making this the correct answer.

While managing device drivers, analyzing system performance, and monitoring network connections are essential tasks in system administration, they do not represent the primary function of the dxdiag utility.