多项选择题
Which of the following IP addresses fall into the CIDR block of 115.54.4.0/22? （）
A. 115.54.8.32 B. 115.54.7.64 C. 115.54.6.255 D. 115.54.3.32 E. 115.54.5.128 F. 115.54.12.128
单项选择题 What is the network address for a host with the IP address 201.100.5.68/28?（）
多项选择题 Which of the following IP addresses is a private IP address? Select all that apply.（）
多项选择题 Which of the following are true regarding a network using a subnet mask of 255.255.248.0?（）
