单项选择题

Whenusingalightningarrestor，connectwhichtypeofgroundwiretoagoodearthground？（）

A.#6solidcopper
B.#12solidcopper
C.#20solidcopper
D.#22solidcopper

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ThefollowingCiscoCatalystSeriesswitchesfitintheaccessarea.Whichswitchesalsoutilize StackWisetechnologytoaddresstheneedsofcompanieswithgrowingnetworksbyallowingthemtoconnect？（）

A.CiscoExpressCatalyst500Seriesswitches
B.CiscoCatalyst2900Seriesswitches
C.CiscoCatalyst3560switches
D.CiscoCatalyst3700Seriesswitches
E.CiscoCatalyst4500Seriesswitches
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单项选择题

Onawlancontroller，whatisthedefaultlimitonthenumberofentriesinthedatabasethatwillbeusedforlocalauthentication？（）

A.50
B.128
C.512
D.1024