Which component collects, stores, and signals the presence of data on a device?

• A. Agent (SNMP Software)
• B. SNMP Manager
• C. SIEM Systems
• D. Network Tap

Answer: (A)

On the device itself, the SNMP agent handles this role. It collects metrics from the device (like CPU, memory, interface status), keeps that information available in the SNMP MIB, and can notify the SNMP manager by sending traps or informs to signal that data is present or an event has occurred. The manager, by contrast, is the central collector that queries agents and aggregates data from many devices; it isn’t stored or running on the device itself. SIEM systems gather logs from various sources for analysis, not the device’s own data store, and a network tap simply duplicates traffic for monitoring without storing or signaling data on the device.