Which feature allows users to check free/busy status within the Google Calendar when integrated with Microsoft Exchange?

Google Calendar Interop is the feature that allows users to check free/busy status within Google Calendar when it is integrated with Microsoft Exchange. This interop functionality is crucial because it bridges the two systems, enabling users on either platform to see the availability of others, thereby making scheduling easier and more efficient.

With Google Calendar Interop, organizations can maintain continuity and collaboration between users on Google Workspace and Microsoft Exchange. It provides seamless integration that ensures that users can view each other's calendar availability in real-time, which is essential for setting up meetings and avoiding scheduling conflicts.

While the other options are relevant to different aspects of Google Calendar and its functionalities, they do not facilitate the specific feature of checking free/busy status between Google Calendar and Microsoft Exchange. Calendar sharing settings pertain to permissions on who can see or edit calendars, service accounts are used for programmatic access to APIs, and Google Meet integration involves scheduling and joining video calls but does not directly relate to the free/busy visibility feature.