单项选择题
You must segement your internal 192.168.1.0/24 network into a minimun of 12 subnet, each containing a minimun of 12 hosts. Which network mask do you use?（）
A. /26 B. /27 C. /28 D. /29
单项选择题 What represents the binary equivalence of 96?（）
单项选择题 What represents the binary equivalence of 148?（）
多项选择题 Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）
