Final answer:
The dxdiag tool is used to gather information about a computer's hardware and diagnose DirectX-related issues. It displays details about the system and its multimedia capabilities, and runs diagnostics on DirectX functions. It is useful for troubleshooting gaming or video playback problems.
Step-by-step explanation:
The dxdiag tool, which stands for DirectX Diagnostic Tool, is a diagnostic tool used to test and display information about the DirectX software installed on your computer, including various functions related to graphics, sound, and input. The main purpose of this tool is to gather information about your computer and diagnose issues related to the Microsoft DirectX suite of multimedia technologies. This can be especially useful for troubleshooting gaming or video playback issues related to graphics drivers or audio problems.
The tool provides detailed information about the system's hardware, such as the graphics card, audio device, and other features, as well as the drivers installed for these components. It also includes functionality for running basic diagnostic tests on the system's DirectX functionality. However, the dxdiag tool does not directly view logs about programs or configure your system for troubleshooting purposes, which excludes options B and C. Nonetheless, its main utility remains for users to diagnose and understand their system's capabilities and potential issues related to DirectX operations (option A and D).