A Virtual Cloud Network (VCN) is a software-defined network that you set up in the OCI data centers of a region. A subnet is a subdivision of a VCN. A VM build executor always runs in a VCN's public subnet.

You can choose to run a VM executor in the VB Studio compartment's VCN or in another compartment's VCN. Run the VM executor in the VB Studio compartment's VCN if you don't have a VCN or want to use the default option without any additional configuration. Run the VM executor in another compartment's VCN if you want the VM executor to access Oracle Cloud services running in that compartment's VCN.