When there are a large number of IP telephones and WLAN APs in the network, which function switch will we generally consider?

When there are a large number of IP telephones and WLAN APs in the network, which function switch will we generally consider?
A . Switches with STP edge port function
B . Switch with POE function
C . Switches with SACG function
D . Switch with QOS function

View Answer

Answer: B