When planning for voice deployments with the Cisco Unified Wireless IP Phone 7921G handset in amultifloor building with a WLAN that operates at an 11 MB/s data rate， how many decibelsreferenced to 1 milliwatt of same-channel separation are recommended between floors？（）

多项选择题Whichthreeitemsshouldthesitesurveydocumentationinclude？（）

A.photographs
B.floor plans
C.wired network layout
D.blueprints

单项选择题TheCiscoAironet1140SeriesAccessPointdraws12.95Watthepowersource.However，whenusingalongEthernetcable，thedevicecandrawuptohowmuchadditionalwattage？（）

A.0.25 W
B.0.45 W
C.1 W
D.1.25 W
E.2.45 W
F.5.65 W

单项选择题Whenusingalightningarrestor，connectwhichtypeofgroundwiretoagoodearthground？（）

A.#6 solid copper
B.#12 solid copper
C.#20 solid copper
D.#22 solid copper

单项选择题Byhowmuchisasignal’sstrengthreducedwhenthesignalpassesthroughanobjectthatintroduces3dBofattenuation？（）

A.1/6
B.1/4
C.1/3
D.1/2

单项选择题Whatistheminimumrecommendedaccesspointoverlapforvoiceroaming？（）

A.less than 10 percent
B.10 to 15 percent
C.15 to 20 percent
D.25 to 30 percent