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Ericsson Exam ECP-206 Topic 4 Question 30 Discussion

Actual exam question for Ericsson's ECP-206 exam
Question #: 30
Topic #: 4
[All ECP-206 Questions]

IPv6 link-local addresses are designed to be used in which three situations? (Choose three.)

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Suggested Answer: A, B, C

IPv6 link-local addresses are designed to be used in three situations: for neighbor discovery, for local IP communication on the IPv6 capable routers, and for addressing on a single link for purposes such as auto-address configuration. Neighbor discovery is a protocol that allows IPv6 nodes to discover each other and learn their link-layer addresses on a local network.Neighbor discovery uses link-local addresses to send and receive messages such as router advertisements, router solicitations, neighbor advertisements, and neighbor solicitations34. Local IP communication on the IPv6 capable routers refers to the ability of routers to exchange routing information or management traffic using their link-local addresses as source and destination addresses.This reduces the need for global unicast addresses on router interfaces that are not reachable from outside the local network35. Addressing on a single link for purposes such as auto-address configuration refers to the use of link-local addresses to enable IPv6 nodes to obtain an address without manual configuration or a DHCP server. Link-local addresses can be automatically derived from the interface identifier in the modified EUI-64 format or randomly generated.Link-local addresses can also be used to test the connectivity of a link before obtaining a global unicast address36.


by Whitley at Sep 14, 2024, 04:17 PM

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Weldon
3 months ago
I believe link-local addresses are not used when routers are not present, as they are specifically designed for local communication within a single link.
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Elli
3 months ago
I agree with Vernell. Link-local addresses are essential for communication on a single link and for routers to forward packets within that link.
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Lisandra
3 months ago
This is easy, A, C, and E. Link-local addresses are for local stuff, not for routers to mess with. D is just silly.
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Erinn
2 months ago
E) when routers are not present
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Martina
2 months ago
C) addressing on a single link for purposes such as auto-address configuration
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Donte
2 months ago
A) for neighbor discovery
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Vernell
3 months ago
I think IPv6 link-local addresses are used for neighbor discovery, local IP communication on IPv6 routers, and auto-address configuration.
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Kathryn
3 months ago
Haha, D? Forwarding link-local addresses to other links? That's a good one! Let's go with A, C, and E.
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Nickole
3 months ago
Definitely A, C, and E. I remember learning that link-local addresses are used for auto-configuration and when routers are not present. D doesn't make sense.
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Lilli
3 months ago
E) when routers are not present
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An
3 months ago
C) addressing on a single link for purposes such as auto-address configuration
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Latanya
3 months ago
A) for neighbor discovery
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Delisa
3 months ago
I think A, C, and E are the correct answers. Link-local addresses are for local communication, not for routers to forward packets.
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Jacklyn
2 months ago
Actually, A, C, and D are the correct answers. Link-local addresses are used by routers to forward packets within the same link.
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Sophia
2 months ago
I believe A and C are correct, but E is not because routers can still use link-local addresses.
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Stacey
2 months ago
I agree, link-local addresses are used for neighbor discovery and auto-address configuration.
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Ryan
3 months ago
I think A, C, and E are the correct answers.
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