Note that Switch-AzureMode has now been deprecated (https://github.com/Azure/azure-powershell/wiki/Deprecation-of-Switch-AzureMode-in-Azure-PowerShell). Cmdlet Rename All cmdlets under Azure Resource Management modules will be renamed to fit the following format: [Verb]-AzureRm[Noun]
Example: New-AzureVm becomes New-AzureRmVm