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Which of the following represents two valid IP addresses?

  1. 192.168.1.1; 172.16.1.26

  2. 255.255.255.255; 2.2.2.2

  3. 172.16.1.26; 0.0.0.0

  4. Both A and B are correct

The correct answer is: Both A and B are correct

The correct answer highlights that both sets of IP addresses provided in the first two options are considered valid according to IP addressing standards. The first choice features two valid private IP addresses. The IP address 192.168.1.1 is a commonly used address in many local networks, belonging to the class C private IP range. Similarly, 172.16.1.26 is part of the class B private range. Both of these addresses can be used within private networks and are routable within those confined environments but are not accessible from the public internet. The second choice includes the address 255.255.255.255, known as the broadcast address for the local subnet. It's a valid IP address that is used to send packets to all devices on the local network segment. The second address, 2.2.2.2, is a standard public IP address that can be routed across the Internet. Both addresses in this pair are valid in their respective contexts. As a result, the conclusion that both A and B provide valid addresses reflects correct understanding of IP addressing laws and conventions.