An administrator notices nigh traffic on a certain subnet and would like to identify the source of the traffic. Which of the following tools should the administrator utilize?
正解:D
A sniffer is a tool that captures and analyzes network traffic on a subnet or a network interface. It can help identify the source, destination, protocol, and content of the traffic and detect any anomalies or issues on the network. Verified References: [Sniffer], [Network traffic]