Final answer:
By default, when saving a consolidated project, only the consolidated project is saved. Individual projects are saved only if the user specifically saves them or the software prompts the user to do so.
Step-by-step explanation:
By default, when you save a consolidated project, each subproject within the consolidated file is saved only when you specifically save that individual project. However, the behavior can vary depending on the project management software you are using. In Microsoft Project, for example, saving the master project (the consolidated project) can prompt you to save each of the subprojects. Nonetheless, it's important to explicitly save changes in each individual subproject to ensure that all data is up-to-date. Therefore, the most accurate answer to the question of what is saved by default when a consolidated project is saved would be that only the consolidated project is saved, unless the software prompts or is set up to save individual subprojects as well. It's always good practice to double-check your settings and save each subproject individually to avoid any data loss.