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You add a new resource to an existing Terraform configuration, but do not update the version constraint in the configuration. The existing and new resources use the same provider. The working contains a .terraform.lock, hc1 file. How will Terraform choose which version of the provider to use?

Which Terraform command checks that your configuration syntax is correct? 

You should run terraform fnt to rewrite all Terraform configurations within the current working directory to conform to Terraform-style conventions.

You have a list of numbers that represents the number of free CPU cores on each virtual cluster: numcpus = [ 18, 3, 7, 11, 2 ] What Terraform function could you use to select the largest number from the list? 

You are working on some new application features and you want to spin up a copy of your production deployment to perform some quick tests. In order to avoid having to configure a new state backend, what open source Terraform feature would allow you create multiple states but still be associated with your current code?