What is the frame time delta from previous frame used for?

• A. To compute packet loss rate
• B. To measure precise timing between frames for performance and latency analysis
• C. To identify session resets
• D. To determine the maximum segment size

Answer: (B)

The frame time delta from the previous frame is about the time interval between consecutive frames. This makes it a direct tool for performance and latency analysis, because it shows how long each frame takes to appear after the one before it, revealing delays, jitter, and overall timing behavior of the capture. That precise timing between frames is exactly what you need to assess responsiveness and throughput in a network trace.

It isn’t used to compute packet loss rate, which relies on detecting missing data or retransmissions rather than the elapsed time between frames. It also isn’t for identifying session resets, which involve signs like connection resets or state changes rather than inter-frame timing. And it isn’t for determining the maximum segment size, which is a TCP parameter related to how large a segment can be, not the timing between frames.