Which tool is used to observe network traffic with a graphical interface and decode protocols in detail?

Which tool is used to observe network traffic with a graphical interface and decode protocols in detail?

• A. Light Meter
• B. tcpdump
• C. Wireshark
• D. nmap

Answer: (C)

Understanding network packet analysis with a graphical viewer and detailed protocol decoding is about using a tool that captures packets and presents them in an intuitive interface, letting you inspect each layer of the protocol and reassemble streams. Wireshark is designed for this: it provides a rich graphical display and deep protocol dissectors that decode hundreds of protocols, letting you drill into headers, fields, and payloads. It can capture live traffic from an interface or open saved capture files and offers powerful filters to focus on what matters, plus features like follow TCP/UDP streams and color-coding to spot patterns. Other tools like tcpdump offer packet capture and decoding but run in text mode, not a graphical interface, so they don’t match the requirement for a GUI detailed view. Scanning tools like nmap are for discovering hosts and services, not for inspecting traffic frames, and a Light Meter isn’t related to network protocol analysis. Wireshark is the tool that fits the description.

Understanding network packet analysis with a graphical viewer and detailed protocol decoding is about using a tool that captures packets and presents them in an intuitive interface, letting you inspect each layer of the protocol and reassemble streams. Wireshark is designed for this: it provides a rich graphical display and deep protocol dissectors that decode hundreds of protocols, letting you drill into headers, fields, and payloads. It can capture live traffic from an interface or open saved capture files and offers powerful filters to focus on what matters, plus features like follow TCP/UDP streams and color-coding to spot patterns. Other tools like tcpdump offer packet capture and decoding but run in text mode, not a graphical interface, so they don’t match the requirement for a GUI detailed view. Scanning tools like nmap are for discovering hosts and services, not for inspecting traffic frames, and a Light Meter isn’t related to network protocol analysis. Wireshark is the tool that fits the description.