The validIPv6 link-local unicast addressis fe80::/10.Link-local addresses arenon-routable addressesthat are only valid in a specific network segment. They're used to send traffic between two devices on the same link, such as a local Ethernet network. These IP addresses are created automatically by the operating system, and they aren't linked to a device'sMAC address, as MAC addresses are used in Link layer addressing.Link-local addresses are utilized to assist in the discovery and configuration of other IPv6 addresses, making them a fundamental component of the IPv6 protocol suite. Each computer must have at least one link-local address, which is used to interact with other devices on the same network segment. The address format for link-local IPv6 addresses is fe80::/10.How do I verify whether an IPv6 address is valid or not?When validating IPv6 addresses, the following rules apply:The address must contain128 bits.The address can only include hexadecimal digits (0-9 and A-F). The address can be represented as 8 groups of 16 bits, separated by a colon. Each group of 16 bits should not include leading zeros, with the exception of the group consisting of all zeros.The following zero values may be dropped to represent the second address:0000: 0:0:0:0:0Theloopback addressis :1.The address must contain no more than one series of consecutive zeros. Any other zeroes must be omitted to construct the address.Learn more aboutIPv6 link-local unicast address:brainly.com/question/30802745#SPJ11Your question is incomplete but probably the complete question is :Which address is a valid IPv6 link-local unicast address?FEC8:1::FFFFFD80::1:1234FE80::1:4545:6578:ABC1FE0A::100:7788:998FFC90:5678:4251:FFFF...

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