Which three are characteristics of an IPv6 anycast address? (Choose three.)
A.
one-to-many communication model
B.
one-to-nearest communication model
C.
any-to-many communication model
D.
a unique IPv6 address for each device in the group
E.
the same address for multiple devices in the group
F.
delivery of packets to the group interface that is closest to the sending device
Explanation:
A new address type made specifically for IPv6 is called the Anycast Address. These IPv6
addresses are global addresses, these addresses can be assigned to more than one interface
unlike an IPv6 unicast address. Anycast is designed to send a packet to the nearest interface that
is apart of that anycast group.
The sender creates a packet and forwards the packet to the anycast address as the destination
address which goes to the nearest router. The nearest router or interface is found by using the
metric of a routing protocol currently running on the network. However in a LAN setting the nearest
interface is found depending on the order the neighbors were learned. The anycast packet in a
LAN setting forwards the packet to the neighbor it learned about first.
B, D, F
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Anycast is a network addressing and routing methodology in which datagrams from a single sender are routed to the topologically nearest node in a group of potential receivers, though it may be sent to several nodes, all identified by the same destination address so the answer is correct as B, E, F.
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