What is one thing you should be aware of when conducting a wireless site survey?

What is one thing you should be aware of when conducting a wireless site survey?

A.
5 GHz equipment will not be able to penetrate through walls as well as 2.4 GHz equipment.

B.
When determining coverage, you should begin measuring attenuation from the middle of the room.

C.
2.4 GHz equipment will not be able to penetrate through walls as well as 5 GHz equipment.

D.
Mounting antennas near metal objects will slightly amplify the signal.

Explanation:
Site 1-35 on “Cisco Aironet Wireless Site Survey, Student Guide”: http://docstore.mik.ua/cisco/pdf/other/Knowledgenet Cisco Aironet Wireless Site Survey (Cawss) 4.0 Student Guide.pdf

content\166040\plo_content\ORG1114\COURSE166040\enus_011425\lsn_09\tpc_a\enus_011425_09a.xml:
The wireless office presents a tremendous opportunity today. WLAN equipment with data rates of up to 54 Mbps are likely to be popular in an enterprise solution, allowing more users and better throughput on a per-access-point basis. The 54-Mbps coverage area will be approximately one-quarter of the 11-Mbps cell size, meaning more access points to cover the same area. Expect that 5 GHz equipment will not be able to penetrate through walls as well as the 2.4 GHz equipment will.

content\166040\plo_content\ORG1114\COURSE166040\enus_011425\lsn_09\tpc_b\enus_011425_09b.xml:
The 2.4 GHz signal has a wavelength of 12.5 cm; the 5 GHz signal has a 6-cm wavelength. The 5 GHz signal will not penetrate through walls as easily as the 2.4 GHz signal, so if the site is to be covered with an equal number of 2.4 GHz and 5 GHz APs, then the TX power of 2.4 GHz AP radios may need to be turned down. To survey the site for 5 GHz, you must repeat the steps used for 2.4 GHz