单项选择题
Which of the following routing protocols is a link state and uses a backbone called area 0？（）
A.OSPF
B.EIGRP
C.BGP
D.IS-IS
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相关考题
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单项选择题
Whichofthefollowingcablestandardshasamaximumeffectiverangeof25meters（82feet）？（）
A.1000Base-CX
B.1000Base-T
C.1000Base-LX
D.1000Base-SX
