Which is an example of a private IP address commonly used in home networks?

Which is an example of a private IP address commonly used in home networks?

• A. 192.168.1.0/24
• B. 8.8.8.0/24
• C. 172.0.0.0/8
• D. 203.0.113.0/24

Answer: (A)

Private IP addresses are used inside local networks and aren’t reachable from the public Internet. In homes, the most common private IPv4 range is 192.168.x.x, which is why a block like 192.168.1.0/24 fits this scenario. The /24 indicates a subnet mask of 255.255.255.0, so devices on that network would typically have addresses from 192.168.1.1 up to 192.168.1.254, with 192.168.1.0 as the network address and 192.168.1.255 as the broadcast address. The other examples are not private addresses: 8.8.8.0/24 is a public Google DNS range; 172.0.0.0/8 is a broad public block (the private equivalent for 172.x is 172.16.0.0/12); and 203.0.113.0/24 is reserved for documentation and examples.

Private IP addresses are used inside local networks and aren’t reachable from the public Internet. In homes, the most common private IPv4 range is 192.168.x.x, which is why a block like 192.168.1.0/24 fits this scenario. The /24 indicates a subnet mask of 255.255.255.0, so devices on that network would typically have addresses from 192.168.1.1 up to 192.168.1.254, with 192.168.1.0 as the network address and 192.168.1.255 as the broadcast address.

The other examples are not private addresses: 8.8.8.0/24 is a public Google DNS range; 172.0.0.0/8 is a broad public block (the private equivalent for 172.x is 172.16.0.0/12); and 203.0.113.0/24 is reserved for documentation and examples.