Explanation/Reference:
C: ILOM supports the Intelligent Platform Management Interface (IPMI), which enables you to monitor and control your server platform, as well as to retrieve information about your server platform.
ILOM supports alerts in the form of IPMI Platform Event Trap (PET) alerts. Alerts provide advance warning of possible system failures.
E: Oracle ILOM supports the Simple Network Management Protocol (SNMP), which is used to exchange data about network activity.
SNMP functionality requires the following two components:
Network management station - A network management station hosts management applications, which

monitor and control managed nodes.
Managed node - A managed node is a device such as a server, router, or hub that hosts SNMP

management agents that are responsible for carrying out requests from management stations, such as a service processor (SP) running Oracle ILOM. Managed nodes can also provide unsolicited status information to a management station in the form of a trap.
References: https://docs.oracle.com/cd/E19860-01/E21452/E21452.pdf