An IT network technician has been tasked with analyzing unusual traffic patterns on a corporate network. To capture network traffic for further analysis, which tool or technique should they use?
NetFlow
TCPdump
Firewalls
Wireshark
Wireshark is the correct answer because it is a widely used software tool designed specifically for network protocol analysis and capturing network packets. This hardware or software-based tool allows users to see the packet-level detail of network traffic, facilitating deep analysis and troubleshooting. TCPdump is incorrect as it is generally used for simpler packet capture tasks primarily in Unix-based systems, not deep analysis. NetFlow focuses on capturing metadata about network traffic, not the packet content itself. Lastly, Firewalls are security devices for controlling network traffic flow, not for packet capture and analysis.
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