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Cisco试题库:ccna最新真题

作者:天晴无名氏 日期:2008-09-26 12:33



1: your junior network administrator wants to know what the default subnet mask is for a class c ip address. what do you tell him?

　　a. 255.0.0.0]6l

　　b. 255.255.0.0

　　c. 255.245.255.0

　　d. 255.255.255.0

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