Fill in the blank: A(n) ____ links together different computing systems and software applications.

In the HubSpot Data Integration certification, Integration is the correct answer because it represents the comprehensive process and result of connecting disparate computing systems and software applications to work as a unified whole. While an API serves as the communication interface and an endpoint defines the specific location of a resource, an integration is the actual bridge that enables data to flow and actions to be synchronized between platforms like HubSpot and Shopify. By establishing an integration, businesses eliminate manual data entry and silos, ensuring that information updated in one system is automatically reflected in another, which is the ultimate goal of connecting different software environments.