A client states they are receiving poor signal strength on their wireless Internet connection. Which of the following is MOST likely causing the interference?（）

A. Determines the best route to transmit data
B. Inspects traffic and accepts or declines transmission
C. Broadcasts data to specific network devices
D. Broadcasts data to all network devices

A.UTP
B.STP
C.Coaxial
D.Fiber

A.HTTPS
B.TELNET
C.SMTP
D.DNS
E.SSH