請參見圖示。所有交換機(jī)都配置有默認(rèn)的網(wǎng)橋優(yōu)先級。如果所有鏈路都在相同的帶寬下運(yùn)行，哪個端口將作為非指定端口？（）
Refer to the exhibit.Assuming that the entire network topology is shown, what is the operational status of the interfaces of R2 as indicated by the command output shown?（）
