Shouldn’t they be in the form of a question?

Which of these would be a valid RFC 1918 address?





E) I didn’t really request these comments

The answer: B)

A list of non-routed (private) IP addresses is defined in RFC 1918, and include,, and

Want to know more? Watch “TCP/IP Subnets.”

Our TCP/IP networks are separated into many subnets. In this video, you’ll learn about the fundamentals of IP subnetting and how legacy class-based and modern classless subnetting is used to connect the worldwide Internet.