Which two protocols are supported on service-port interfaces? (Choose two.)

Telnet and SSH are protocols used for remote access and management of network devices, including those with service-port interfaces. Service ports are often used for out-of-band management, and these protocols provide the means to connect to and configure the device. Telnet is an older, unencrypted protocol, while SSH offers secure, encrypted communication. SCP (Secure Copy Protocol) is used for secure file transfer, not for interactive remote access. TACACS+ and RADIUS are authentication, authorization, and accounting (AAA) protocols, used for centralizing user access control, not for direct device management via a service port.