单项选择题
A. .128.1 through .143.254
B. .128.128 through .134.254
C. .128.0 through .134.254
D. .128.1 through .159.254
单项选择题 You must segment your internal /24 network into a minimum of 12 subnets, each containing a minimum of 12 hosts.Which network mask do you use?（）
单项选择题 You have been assigned the /24 network and need to segment it into at least 60 subnets.Which network mask meets this requirement?（）
单项选择题 Which network mask is the equivalent of 255.255.248.0?（）