单项选择题
A.0.25 W B.0.45 W C.1 W D.1.25 W E.2.45 W F.5.65 W
Whenusingalightningarrestor，connectwhichtypeofgroundwir...
单项选择题When using a lightning arrestor， connect which type of ground wire to a good earth ground？（）
A.#6 solid copper B.#12 solid copper C.#20 solid copper D.#22 solid copper
Byhowmuchisasignal’sstrengthreducedwhenthesignalpassest...
单项选择题By how much is a signal’s strength reduced when the signal passes through an object thatintroduces 3 dB of attenuation？（）
A.1/6 B.1/4 C.1/3 D.1/2
Whatistheminimumrecommendedaccesspointoverlapforvoicero...
单项选择题What is the minimum recommended access point overlap for voice roaming？（）
A.less than 10 percent B.10 to 15 percent C.15 to 20 percent D.25 to 30 percent
