Which of the following is NOT a key component of an SNMP-managed network?

• A. Network Management Systems (NMS)
• B. Managed Devices
• C. Agents
• D. Routers

Answer: (D)

SNMP management relies on three roles: the Network Management System, the managed devices, and the agents that run on those devices to expose data and respond to requests. The Network Management System is the central console that collects information and sends commands. Managed devices are the nodes in the network that you want to monitor and control. Agents are software on those devices that gather data (via MIBs) and communicate with the NMS. Routers, while common targets for SNMP, are not a separate structural component of SNMP itself—they’re simply examples of devices that can be managed if they run an SNMP agent. So the concept that isn’t a distinct SNMP component is routers.