Which three statements correctly describe Cisco ISE functioning as a CA?

Cisco ISE's functionality as a Certificate Authority (CA) is demonstrated in several key capacities. One of the primary roles it undertakes is the issuance of endpoint certificates. These certificates are essential for identity validation, allowing devices to prove their legitimacy to the network and ensuring secure communications. This process is crucial for establishing trust within an environment where multiple devices connect, which aligns with the overarching security goals of Cisco ISE.

The ability of Cisco ISE to issue endpoint certificates facilitates various security protocols, including 802.1X authentication, enhancing the overall security framework of the network. By issuing these certificates, Cisco ISE ensures that only authorized devices can connect to the network, thereby reducing risks associated with unauthorized access.

Moreover, when evaluating Cisco ISE as a subordinate CA, it can effectively operate under an existing root CA hierarchy, allowing it to leverage established trust relationships while managing certificates for endpoints within its scope. However, direct public-facing CA functionality is outside its primary role, as Cisco ISE is designed to support enterprise environments rather than act as a public CA.

Thus, the correct statement regarding Cisco ISE's capabilities as a CA focuses primarily on its role in issuing endpoint certificates, which is vital for establishing a robust security posture in network environments.