Which IPv6 address type resembles a unicast address but is assigned to multiple devices on the same network simultaneously?

An anycast address is a unicast address assigned to multiple interfaces, typically on different devices. When a packet is sent to an anycast address, it is routed to the "nearest" interface that has that address, according to the routing protocol's metric. This is useful for services like DNS, where multiple servers can offer the same service, and clients are directed to the closest available server. A global unicast address is a unique address assigned to a single interface, routable globally. A link-local address is a unicast address that is only valid and unique on a single network segment (link). A multicast address is used to send a single packet to a group of interfaces, where all members of the group receive a copy of the packet.