單項選擇題Construction of a new automobile parts manufacturing facility has recently been completed. Thefacility IT manager wants to deploy voice over WLAN. During your initial walkthrough， you observenumerous highly reflective surfaces on the manufacturing equipment and in the buildingconstruction itself. What potential problem exists that should be accounted for during your sitesurvey？（）

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


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1.單項選擇題If there is an existing 802.11g WLAN at a site， which service can be provided without conducting anew site survey？（）

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

2.多項選擇題What are two objectives of a pre-site survey walkthrough？ （）

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

3.單項選擇題Which is NOT part of a typical wireless site survey？（）

A.Implementation suggestions
B.Access point locations
C.Security requirements
D.Access point mounting methods

4.單項選擇題Which value is NOT supported by Cisco Spectrum Expert， when checking for RF coverage？（）

A.Access point received-signal strength level
B.Spectrum utilization
C.Client data rate
D.In-band radio frequency interference