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(xiàng)選擇題

What are two reasons for using a virtual link in OSPF?()

A. Provides fast convergence times.
B. Supports connections of multiple backbones.
C. Eliminates the need for a Designated Router.
D. Supports non direct connections to the backbone.

微信掃碼免費(fèi)搜題