24. 以庚子科技目前規劃的電子商店而言，下列何種管控技術較「不」適合用來作為使用者的身分認證？(A) KAP (Kerberos authentication protocol)(B) RADIUS (Remote Authentication Dial. In User Service)(C) SNMP (Simple Network Management Protocol)(D) TACACS (Terminal Access Controller Access-Control System)(E) LDAP (Lightweight Directory Access Protocol)