技術者は中小企業向けに新しい SOHO ルーターを構成しました。ISP は技術者にルーターの WAN ポートの IP アドレスを与えました。次のアドレスのうち、技術者がルーターに設定した可能性が最も高いのはどれですか?
正解:B
Explanation This is an example of a public IP address that can be assigned by an ISP to a router's WAN (Wide Area Network) port. A public IP address is a globally unique and routable address that allows a device to communicate with other devices on the internet. A private IP address, such as 10.1.50.30 or 172.22.40.6, is a non-routable address that is used within a local network and cannot be directly accessed from the internet. A link-local IP address, such as 169.254.168.10, is a self-assigned address that is used when a device cannot obtain a valid IP address from a DHCP server.