正解:B
The Cisco Stealthwatch system is the component of the Cisco Cyber Threat Defense solution that provides user and flow context analysis. This system offers broad visibility across the network and is designed to analyze and understand network behaviors, detect anomalies, and provide insights into network traffic patterns. It leverages NetFlow data to perform security monitoring, application visibility, and control, as well as incident response. By analyzing the flow data, Stealthwatch can identify malicious activities and potential threats within the network, enabling a more proactive defense posture.
References: The information is based on the Cisco Cyber Threat Defense v2.0 Design Guide