What approximates the signal attenuation of a plasterboard wall？（）

单项选择题WhichstatementistruewhenusingaCiscoWirelessMeshNetworkingSolution？（）

A.The backhaul link is dynamic 1 to 54Mb/s.
B.The backhaul link is typically a fixed value.
C.The backhaul link uses DAS antennas.
D.The backhaul link uses antenna multiplexing.
E.The backhaul link does not rely on fade margin.

单项选择题Towhichparametershouldtheaccesspointbesetduringasitesurvey？（）

A.Transmit only
B.Diversity
C.Receive only
D.Single isolated antenna

单项选择题Constructionofanewautomobilepartsmanufacturingfacilityhasrecentlybeencompleted.ThefacilityITmanagerwantstodeployvoiceoverWLAN.Duringyourinitialwalkthrough，youobservenumeroushighlyreflectivesurfacesonthemanufacturingequipmentandinthebuildingconstructionitself.Whatpotentialproblemexiststhatshouldbeaccountedforduringyoursitesurvey？（）

A.LOS modulation
B.Multipath distortion
C.RF signal absorption
D.RF signal attenuation
E.Fresnel zone impedance

单项选择题Ifthereisanexisting802.11gWLANatasite，whichservicecanbeprovidedwithoutconductinganewsitesurvey？（）

A.Add a new 802.11a WLAN
B.Increase the Layer 2 and Layer 3 security of the WLAN
C.Increase the throughput for the wireless clients
D.Add new services （such as voice） over the WLAN

多项选择题Whataretwoobjectivesofapre-sitesurveywalkthrough？（）

A.Identify potential problem areas
B.Define intended coverage areas
C.Access compliance with local building codes
D.Determine the final location of APs and antennas
E.Identify sources of RF signal attenuation and RF interference