Which three components are recommended to complete the survey?

A network engineer is preparing for an office site survey with a height of 2.5 meters .

Which three components are recommended to complete the survey? (Choose three.)
A . Use a battery pack to power APs
B . Use a drawing of the office space to draw AP and client placements.
C . Use DoS attack on APs while measuring the throughput.
D . Use APs with directional antennas.
E . Use APs with external antennas.
F . Use APs with built-in antennas.

Answer: A,B,F

Explanation: https://www.cisco.com/c/en/us/td/docs/wireless/technology/mesh/8-4/b_mesh_84/Site_Preparation_and_Planning.html#ID3405