Which feature allows users to log in once and gain access to all applications on the Air Force Portal?

The feature that allows users to log in once and gain access to all applications on the Air Force Portal is Single Sign-On (SSO). Single Sign-On is a user authentication process that permits a user to access multiple applications with one set of login credentials. This is particularly advantageous in environments like the Air Force Portal, where users need to access various services and applications efficiently.

With SSO, once a user logs in, they do not have to re-enter their credentials for each application they wish to access, streamlining the user experience and enhancing productivity. It also increases security by reducing the number of times users must enter their passwords, which can lead to better password management and reduced risks associated with phishing attacks.

In contrast, the other options do not provide the same functionality. For instance, "my base" typically pertains to a specific interface for personal military information but does not inherently provide the expansive access that SSO does. "Community of practice" refers to groups of people who share a common interest or profession and does not relate to authentication processes. The "virtual Military Personnel Flight" is an online platform for administrative tasks and resources but does not encompass the broader single sign-on benefits that SSO provides. Thus, SSO is essential for effective and secure