フリー問題

問題文

A team must state which switch priorities the default converged Ethernet configuration uses. Which statement matches the default?

選択肢

1. Switch priority 3 carries the transport's own traffic and switch priority 6 carries the congestion notification packets, while everything else maps to traffic class 0.
2. Switch priority 0 carries the transport's own traffic because it is the priority that every adapter can be relied on to emit without additional configuration, and switch priority 7 carries the congestion notification packets because the highest priority is reserved for control-plane messages by convention.
3. All switch priorities map to traffic class 3 by default.
4. Switch priorities 3 and 4 both carry the transport's traffic, with 3 used for writes and 4 used for reads, so that the two directions can be shaped independently, and traffic class 0 carries the notification packets.