单项选择题
A.255.0.0.0
B.255.256.255.0
C.255.255.255.255
D.255.255.00
单项选择题 Which of the following protocols is the LEAST secure and should be avoided on a wireless network?（）
单项选择题 Which of the following should be configured to provide priority to voice traffic?（）
单项选择题 An administrator is configuring IP 10.178.1.5 on a legacy device that will only accept a classfuladdress. Which of the following is the address that can be used in this scenario?（）