Free CompTIA Network+ N10-008 Practice Question

Traps in SNMP are unsolicited messages sent by an SNMP agent to an SNMP manager to alert the manager about an event, such as a threshold being exceeded or a device failure. Unlike polling, where the SNMP manager must ask the agent for information, traps are initiated by the agent. This makes traps the best option for receiving notifications for specific events. Other choices, such as Object Identifiers (OIDs) and Management Information Bases (MIBs), are vital in the SNMP framework, but they are not specifically designed for alert notifications. OIDs are used to uniquely identify managed objects in an MIB hierarchy and are not messages or alerts themselves. MIBs are collections of OIDs and provide a structure for organizing them, but do not send notifications.