When mobile users roam from one point of a building to another, their connection drops and they have to reinitiate pending downloads. The administrator determines that the signal is weak in certain areas of the building. Which of the following is the BEST way of addressing this issue?
A. Identify areas as known dead zones for wireless connectivity
B. Increase the signal strength in the mobile device
C. Use a different SSID while roaming the building
D. Strengthen AP signal and AP device placement
