Which two characteristics are true for video traffic?

Video traffic latency should not exceed 400 ms is indeed a crucial characteristic. Latency refers to the time it takes for data to travel from the source to the destination. For real-time applications like video conferencing or streaming, low latency is vital to ensure a smooth and uninterrupted experience for users. A latency value exceeding 400 ms may lead to noticeable delays and a degraded user experience, making this threshold important for maintaining the quality of video communication.

In the context of video traffic, latency management is pivotal. High latency can result in lip-sync issues, delayed interactions, or buffering, all of which can significantly disrupt video services. Therefore, keeping latency under 400 ms is a standard guideline to maintain acceptable performance in video traffic scenarios.