Which of the following is a default instance setting for VizQL process instances?

The default instance setting for VizQL process instances, which is set to be equal to the number of cores divided by four, is designed to optimize performance in a Tableau Server environment. This approach allows the server to effectively allocate resources while managing concurrent query loads.

When VizQL processes are configured this way, it enables Tableau to handle multiple user requests and complex visualizations without overloading the system. By allocating one VizQL instance for every four CPU cores, Tableau strikes a balance between performance and resource utilization. This means that there is enough capacity to process multiple concurrent queries while also ensuring that the hardware is not overwhelmed.

In contrast, choices that suggest equal to the number of users, total data size, or the number of reports generated do not consider the physical hardware capabilities and do not provide a scalable and performance-oriented approach to managing VizQL processes. Such settings could lead to either underutilization or excessive resource allocation, which can hinder system performance and responsiveness.