A.172.31.17.4/30 B.172.31.51.16/30 C.172.31.64.0/18 D.172.31.80.0/22 E.172.31.92.0/22 F.172.31.192.0/18
A.在二層唯一確定一臺設備 B.是設備在不同的網(wǎng)絡中通信 C.區(qū)別二層和三層幀 D.確定設備的優(yōu)先級 E.是同一網(wǎng)絡的不同設備可以通信 F.當不知道遠程設備的物理地址時可以查詢
A.RSTP cannot operate with PVST+. B.RSTP defines new port roles. C.RSTP defines no new port states. D.RSTP is a proprietary implementation of IEEE 802.1D STP. E.RSTP is compatible with the original IEEE 802.1D STP.