Cisco Certified Support Technician (CCST) NetworkingIP ServicesMedium
A network security team needs to monitor the operational status of network devices and receive alerts for critical events. They are implementing a solution that allows devices to proactively send notifications to a central management station. Which SNMP component is responsible for sending these unsolicited notifications?
- ASNMP Agent
- BSNMP Manager
- CManagement Information Base (MIB)
- DSNMP Trap
Show answer & explanationAnswer & explanation
Correct answer: D. SNMP Trap
An SNMP Trap is an unsolicited notification sent by an SNMP agent to a management station when a significant event occurs, such as a link going down or a device rebooting.
Why the other options are wrong
- A. The SNMP Agent resides on the managed device and sends traps, but the trap itself is the notification.
- B. The SNMP Manager receives traps and polls agents, it doesn't send unsolicited notifications.
- C. The MIB is a database of managed objects, not a component that sends notifications.
SNMP Trap
An unsolicited alert message sent by an SNMP agent to an SNMP manager to notify of a significant event.
- Proactive notification mechanism.
- Used for critical events (e.g., link down, authentication failure).
- Reduces polling overhead for managers.
Memory trick: A 'Trap' catches attention with a sudden alert.