In a network management architecture, which statement best describes a management agent?

In a network management architecture, which statement best describes a management agent?

• communication protocol used between a management station and managed device
• standardized database that a device keeps about itself concerning network performance parameters
• host with the management application loaded that is used by the administrator to monitor and configure network devices
• software running on a managed device to collect network information and allow that device to be managed by a management station

Exam with this question: CCNA Discovery 4: DCompNtwk Chapter 2 Exam