Which range of IP addresses is considered as private?

Private IP addresses are defined by the Internet Engineering Task Force (IETF) in RFC 1918. These addresses are reserved for use within private networks and are not routable on the public Internet. The correct choice encompasses all specified ranges of private IP addresses.

The range from 10.0.0.0 to 10.255.255.255 is defined as a Class A private address and allows for a very large number of hosts within a single private network. The Class B range from 172.16.0.0 to 172.31.255.255 accommodates many organizations and supports medium-sized networks. Lastly, the Class C range from 192.168.0.0 to 192.168.255.255 is often used for smaller networks, such as home routers.

Since all these ranges are specified as private, considering them collectively confirms that the statement in the choice that includes "All of the above" is correct. Understanding these ranges is crucial for network planning and design to ensure that devices within the same private network can communicate without conflict with public IP space.