Which statement describes a managed device?

• A. A network node that contains an SNMP agent and resides on a managed network.
• B. A device that routes packets between networks.
• C. A printer connected to the network.
• D. A USB storage device used for backups.

Answer: (A)

In network management, a managed device is one that can be monitored and controlled by a network management system, typically through an SNMP agent that runs inside the device. The statement describing a network node that contains an SNMP agent and sits on a managed network directly signals this capability: the SNMP agent is what the management system uses to query status, gather data, and apply configurations or alarms. That explicit presence of an SNMP agent on a device confirms it as part of the managed environment.

The other options describe common network or peripheral devices but don’t specify management capabilities. A router is a network device that may be manageable, but without mentioning an SNMP agent or management system, it doesn’t clearly define a managed device. A printer could also be managed in some setups, yet the description doesn’t guarantee SNMP-based management. A USB storage device used for backups is not inherently a network-managed device and typically operates as local or direct-attached storage rather than a managed network node.