Reference: https://developer.cisco.com/site/sandbox/ The Cisco DevNet Sandbox provides a virtual environment where developers can test their scripts and configurations without affecting production environments. It offers a range of pre-configured labs and environments that mimic real-world scenarios, allowing for thorough testing and validation of code before deployment. References: Cisco DevNet Associate Study Guide: DevNet Resources and Tools (Chapter 9, Section: Utilizing Cisco DevNet Sandbox for Testing).