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?（）
A. /26 B. /27 C. /28 D. /29
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?（）
多项选择题 Which two protocols use UDP as a transport protocol by default?（）
