多项选择题
A.photographs B.floor plans C.wired network layout D.blueprints
TheCiscoAironet1140SeriesAccessPointdraws12.95Watthepow...
单项选择题The Cisco Aironet 1140 Series Access Point draws 12.95 W at the power source. However， whenusing a long Ethernet cable， the device can draw up to how much additional wattage？（）
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
