Explanation:
The correct answers are 'RG1 only' and 'West US only'. The VM must be deployed in the same resource group and location as the VMSS1. Therefore, you should use RG1 for the resource group and West US for the location, as VMSS1 is in RG1 and located in West US. According to Microsoft documentation and best practices, resources in a scale set must be in the same resource group and region.
In an Azure subscription with VMSS1 configured in VM orchestration mode, which resource group and location are required to deploy a new VM1 for addition to VMSS1?
A
RG1 only
B
Any of RG1, RG2, or RG3
C
West US only
D
Same region as VMSS1