97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

多項選擇題

avoid Layer 2 loops. Which two of the following are most probably the reasons for that preference?()

A. Information about port roles is sent to all switches.
B. RSTPs that are based on Cisco products require no additional configuration.
C. Features such as UplinkFast and BackboneFast are compatible with RSTP.
D. An RSTP that is based on Cisco products generally performs better than the Cisco proprietary 802.1D enhancements.

微信掃碼免費搜題