What command is used to increase Elastic Server heap size?

The command that is used to increase the Elastic Server heap size is the one that sets the elasticserver.vmopts configuration. This command allows administrators to adjust various Java Virtual Machine options, which includes specifying the heap size allocated to the Elastic Server component. The -k option indicates that you are setting a specific key in the Tableau Server's configuration, and the -v represents the value you want to apply to that key (in this case, the heap size).

Increasing the heap size is crucial for ensuring that the Elastic Server can handle larger datasets and more concurrent users without running into performance issues. This adjustment can enhance the responsiveness and stability of the server when processing data.

The other choices do not correctly relate to the process of increasing the Elastic Server heap size or do not utilize the correct syntax for Tableau Server's command-line interface. This makes them ineffective for this specific task.