After authenticating to the Cisco DNA Center API, what is returned to identify the authenticated session for subsequent API requests?

After successful authentication to the Cisco DNA Center API, an authentication token (often a bearer token or JWT) is returned. This token is then included in the header of all subsequent API requests to prove the client's identity and authorization without needing to resend credentials. This method enhances security by not transmitting sensitive credentials repeatedly and allows for token expiration. Client X.509 certificates are used for mutual TLS authentication, not typically as a direct return value for session identification after an initial login. Session cookies are more common in web browser-based sessions, while API interactions typically use tokens. Sending the username and password with every request is insecure and inefficient.