Which Wireshark feature is used to plot throughput over time for a conversation?

• A. The Transit Delay indicator
• B. Statistics > IO Graphs
• C. The Conversations window
• D. The Telemetry Graph

Answer: (B)

Throughput over time for a conversation is shown with the IO Graphs tool. IO Graphs let you plot the data rate in bits per second as traffic flows over time, and you can focus on a single conversation by filtering to just that traffic. Open Statistics > IO Graphs, set the Y axis to Bits per second, and apply a display filter that selects the conversation (for example tcp.stream == N for a TCP conversation or udp.stream == N for UDP). The graph then displays how much data that conversation transferred per second, i.e., its throughput over time. The Conversations window shows counts and totals per conversation but not a time-based throughput plot. Other options typically emphasize latency or delays rather than the data-rate over time, so they won’t provide the same throughput view.