What tool can be used for network packet analysis?

Wireshark is a powerful and widely-used tool for network packet analysis, making it the correct choice for this question. It captures network traffic in real time, allowing users to inspect and analyze the data packets being transmitted over a network. With Wireshark, users can view detailed information about each packet, including its source and destination addresses, protocol used, and even the data contained within the packet. This level of insight is crucial for diagnosing network issues, monitoring network performance, and investigating suspicious activity.

In contrast, while PerfMon is useful for monitoring system performance metrics, it is not specialized for network packet analysis. NetMon (Network Monitor) is also a packet analyzer, but it has become less common compared to Wireshark, which has a broader user base and more extensive features. Task Manager is primarily focused on providing information about running processes and performance on a device, and it does not offer the capability to analyze network packet data.