NSE4 · Question #66
What functions can the IPv6 Neighbor Discovery protocol accomplish? (Choose two.)
The correct answer is C. Autoconfigure addresses and prefixes. D. Determine other nodes reachability. This question identifies the core functionalities provided by the IPv6 Neighbor Discovery Protocol (NDP).
Question
What functions can the IPv6 Neighbor Discovery protocol accomplish? (Choose two.)
Options
- ANegotiate the encryption parameters to use.
- BAuto-adjust the MTU setting.
- CAutoconfigure addresses and prefixes.
- DDetermine other nodes reachability.
How the community answered
(43 responses)- A2% (1)
- B2% (1)
- C95% (41)
Why each option
This question identifies the core functionalities provided by the IPv6 Neighbor Discovery Protocol (NDP).
Negotiating encryption parameters, such as for IPsec, is handled by protocols like Internet Key Exchange (IKE), not by the Neighbor Discovery Protocol.
While NDP Router Advertisements can convey the link's MTU, NDP does not dynamically 'auto-adjust' the MTU setting; it advertises a configured value.
NDP facilitates Stateless Address Autoconfiguration (SLAAC) by allowing hosts to discover routers and obtain network prefixes from Router Advertisement messages to generate their own IPv6 addresses.
NDP uses Neighbor Solicitation and Neighbor Advertisement messages to determine and verify the reachability of other nodes on the same local link, a process known as Neighbor Unreachability Detection (NUD).
Concept tested: IPv6 Neighbor Discovery Protocol functions
Source: https://learn.microsoft.com/en-us/windows-server/networking/technologies/ipv6/ipv6-neighbor-discovery
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