Which IP addresses are considered private and nonroutable?

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The recognition of private and nonroutable IP addresses is essential for understanding networking concepts, particularly in managing internal networks. The ranges of IP addresses designated for private use are defined by the Internet Engineering Task Force (IETF).

The correct choices that fall under the private address space include any address that lies within the following ranges:

  1. 10.0.0.0 to 10.255.255.255
  2. 172.16.0.0 to 172.31.255.255
  3. 192.168.0.0 to 192.168.255.255

In this context, the address 10.0.20.90 is a part of the 10.0.0.0/8 range, making it private and nonroutable.

The other options include:

  • The address 64.96.233.83, which is in the public IP range and thus routable on the internet. Any IP outside of the specified private ranges is deemed public.
  • While 192.168.10.5 indeed falls within the private range of 192.168.0.0 to 192.168.255.255, it is important