Question

question 28 2 pts which of these are a valid ipv6 address? 40:91:2ca:1g05:238b:443:53:3004 1240:b332:ff:02ca::b 244::abba:35::992d:4aa:8871 5573:52335:9ab:0300:3004:ab01:3209:ac01 0260:d6ff:000a:30d2::30hb

Explanation:

Step1: Check for invalid characters

IPv6 addresses use hexadecimal characters (0 - 9, a - f, A - F). In 40:91:2CA:1G05:238B:443:53:3004, the character 'G' is invalid. In 0260:d6FF:000A:30D2::30HB, the character 'H' is invalid.

Step2: Check for multiple double - colons

IPv6 allows only one double - colon (::) for compression. In 244::ABBA:35::992D:4AAA:8871, there are two double - colons, which is invalid.

Step3: Check for correct segment length

Each segment in an IPv6 address should be 1 - 4 hexadecimal digits. In 5573:52335:9AB:0300:3004:AB01:3209:AC01, the segment '52335' has 5 digits, which is invalid.

Step4: Validate the remaining option

1240:b332:FF:02CA::B follows the rules of IPv6 addressing. It has valid hexadecimal characters, only one double - colon for compression, and each segment (except the compressed part) has the correct number of hexadecimal digits.

Answer:

1240:b332:FF:02CA::B