Cisco Certified Network Professional 2026 – 400 Free Practice Questions to Pass the Exam

The correct answer pertains to the function of the multicast address FF02::1:FF00:0/104 in IPv6, which specifically serves to identify solicited node multicast addresses.

Solicited-node multicast addresses are a feature of the Neighbor Discovery Protocol in IPv6, which is utilized for various network functionalities, including address resolution, neighbor reachability detection, and more. Each IPv6 address is associated with a solicited-node multicast address that allows devices to efficiently join a multicast group to discover other devices on the same local network segment. This particular multicast address range ensures that it is generated based on the last 24 bits of a device's unicast or anycast address, thereby making it unique to each interface.

The other options do not align with the specific purpose of this multicast address. While routing protocols and the routing of messages between routers are significant aspects of networking, they are not directly related to the function of this multicast address. Similarly, grouping all routers in a network or managing DNS records does not pertain to solicited-node multicast functionality—the primary goal here is facilitating local network operations rather than broader network management tasks.