NSE4 · Question #65
Which statements are true regarding IPv6 anycast addresses? (Choose two.)
The correct answer is A. Multiple interfaces can share the same anycast address. D. An anycast packet is routed to the nearest interface. This question tests understanding of the fundamental characteristics and routing behavior of IPv6 anycast addresses.
Question
Which statements are true regarding IPv6 anycast addresses? (Choose two.)
Options
- AMultiple interfaces can share the same anycast address.
- BThey are allocated from the multicast address space.
- CDifferent nodes cannot share the same anycast address.
- DAn anycast packet is routed to the nearest interface.
How the community answered
(24 responses)- A88% (21)
- B4% (1)
- C8% (2)
Why each option
This question tests understanding of the fundamental characteristics and routing behavior of IPv6 anycast addresses.
IPv6 anycast addresses are designed to be assigned to multiple interfaces, potentially on different nodes, allowing any of them to respond to a packet sent to that address.
IPv6 anycast addresses are allocated from the unicast address space, distinct from the multicast address space.
The defining characteristic of anycast is that different nodes *can* share the same anycast address to provide service redundancy and proximity-based routing.
An anycast packet is routed by the network to the single 'nearest' interface among those configured with the specific anycast address, based on routing metrics.
Concept tested: IPv6 anycast addressing concepts
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/ipv6/ipv6-anycast
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