You are designing a YAML template for Azure Pipelines that includes a parameter named outputfile. Which two syntaxes can be used to reference this parameter in the template? (Select two.)

Azure Pipelines YAML templates use specific syntax for referencing parameters. The parameters object is accessed using either dot notation or bracket notation within an expression. The ${{}} syntax denotes a template expression, which is evaluated at compile time before the pipeline runs. Therefore, both ${{parameters.outputfile}} and ${{parameters['outputfile']}} are valid ways to reference a parameter named outputfile. The options using $() syntax, such as $(parameters.outputfile) or $(parameters['outputfile']), represent runtime expressions, which are evaluated during pipeline execution. Parameters, however, are typically resolved at compile time for template processing.