Question

You are authoring a Bicep file that deploys virtual machines. You need to ensure that anyone deploying the template can only choose from a predefined list of three VM SKUs (Standard_B2s, Standard_D2s_v3, or Standard_D4s_v3) for the 'vmSize' parameter, and the deployment must fail if any other value is supplied. Which Bicep construct should you add to the parameter?

Accepted Answer

The @allowed() decorator listing the three SKUs above the vmSize parameter declaration

Answer

A default value assigned to the vmSize parameter using the '= Standard_B2s' syntax

Answer

An if() conditional expression in the resource block that checks the vmSize value

Answer

The @secure() decorator on the vmSize parameter to lock the accepted values