单项选择题
If an Ethernet port on router was assigned an IP address of 172.16.112.1/20, what is the maximum number of hosts allowed on this subnet?（）
A. 1024 B. 2046 C. 4094 D. 4096 E. 8190
多项选择题 Which of the following IP addresses fall into the CIDR block of 115.54.4.0/22? （）
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.（）
