单项选择题
What is the network address for the 10.13.147.100/19 host?（）
A. 10.13.128.0 B. 10.13.147.0 C. 10.13.0.0 D. 10.13.100.0
单项选择题 What is the last usable IP address in the 218.6.0.0/17 network?（）
单项选择题 What is the binary equivalent of 242.168.94.124?（）
单项选择题 In dotted decimal notation, what is the equivalent of 11010101 01000010 01111111 11000010?（）
