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Nokia 4A0-100 Exam - Topic 8 Question 105 Discussion

Actual exam question for Nokia's 4A0-100 exam

Question #: 105
Topic #: 8

[All 4A0-100 Questions]

Which of the following is part of the IP forwarding process?

AThe router does a longest prefix match lookup.

BThe router checks the source address in the MAC FDB.

CThe router assigns a cost to each of its interfaces.

DThe router advertises routes to its neighbors.

Show Suggested Answer

Suggested Answer: B

by Sage at Jan 15, 2025, 06:41 PM

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Pamella

6 months ago

Surprised to see B mentioned at all!

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Brock

6 months ago

Wait, does D really happen during forwarding?

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Cherri

7 months ago

C is more about routing protocols, not forwarding.

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Hershel

7 months ago

I don't think B is correct.

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Patria

7 months ago

A is definitely part of the process!

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Vicky

7 months ago

I feel like assigning costs to interfaces is more about routing decisions rather than the actual forwarding process.

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King

7 months ago

I'm a bit confused about the MAC FDB check; I thought that was more related to Layer 2 operations, not IP forwarding.

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Claudia

8 months ago

I remember practicing a question similar to this, and I think the router advertising routes is more about routing protocols than forwarding.

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Lettie

8 months ago

I think the longest prefix match lookup is definitely part of the IP forwarding process, but I'm not completely sure about the other options.

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Luis

8 months ago

The IP forwarding process is all about getting the packet to its destination, so I'm thinking option A is the right answer here. The router needs to look up the best route based on the destination address.

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Lavina

8 months ago

I'm a bit confused by this question. The options seem to cover different aspects of routing, but I'm not sure which one is specifically part of the IP forwarding process. I'll have to review my notes on that.

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Lashawnda

8 months ago

Okay, let's see here. I remember the router doing a longest prefix match lookup to determine the next hop. I think that's option A. I'll mark that one.

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Vanesa

8 months ago

Hmm, I'm not sure about this one. I know IP forwarding involves looking up the destination address, but I'm not sure about the specific steps. I'll have to think this through carefully.

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Domingo

8 months ago

This looks like a pretty straightforward IP forwarding question. I'm pretty confident I can handle this one.

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Pedro

1 year ago

I believe D) The router advertises routes to its neighbors is also part of the IP forwarding process, as it helps in sharing routing information.

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Kanisha

1 year ago

C) The router assigns a cost to each of its interfaces. Ha! That's a good one. As if routers have feelings and need to find the 'right' path. They just want to get the job done, you know?

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Lang

1 year ago

B) The router checks the source address in the MAC FDB. Hmm, I'm not so sure about that one. Sounds like it might be more of a switching thing than a routing thing.

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Ora

1 year ago

D) The router advertises routes to its neighbors. That's the correct answer, right? I mean, how else is the network supposed to know where to send the packets?

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Corrina

1 year ago

Exactly, it's an essential part of the IP forwarding process to ensure packets reach their intended destination.

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Marge

1 year ago

Yes, that's correct. By advertising routes to its neighbors, the router helps other devices know where to send packets.

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Dorinda

1 year ago

I agree with Caprice, because the router needs to find the best matching route for the destination IP address.

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Caprice

1 year ago

I think A) The router does a longest prefix match lookup is part of the IP forwarding process.

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Garry

1 year ago

A) The router does a longest prefix match lookup. That's definitely the key part of the IP forwarding process. No doubt about that one.

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Sharee

1 year ago

C) The router assigns a cost to each of its interfaces. That helps determine the best path for forwarding packets.

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Yesenia

1 year ago

B) The router advertises routes to its neighbors. That's also an important step in the IP forwarding process.

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Leatha

1 year ago

A) The router does a longest prefix match lookup. That's definitely the key part of the IP forwarding process. No doubt about that one.

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