Describe how to implement Infrastructure as Code (IaC) in Azure using ARM templates and Azure DevOps.

Infrastructure as Code implementation in Azure:\n\n• ARM templates for declarative infrastructure definition\n• Azure DevOps pipelines for automated deployment\n• Parameter files for environment-specific configurations\n• Nested templates for modular and reusable components\n• Azure Resource Manager deployment modes (incremental/complete)\n• Integration with Azure Key Vault for secure parameter handling\n\nImplement template validation and testing in CI/CD pipelines, use Azure Resource Manager Tools extension for development, implement proper versioning and change management. Consider using Bicep as a domain-specific language for simpler template authoring and maintenance.