单项选择题
哪种扩频技术是802.11B定义使用的?()
A.IR B.DSSS C.FHSS D.DSSS and FHSS E.IR,FHSS,and DSSS
单项选择题 What is the effect of the following access list condition access-list 101 permit ip 10.25.30.0 0.0.0.255 any()。
单项选择题 Which IPV6 routing protocol uses multicast group FF02::9 to send updates?()
单项选择题 根据下图,R1能通告给R2的最有效的汇总是?()