Cisco 300-420 Exam - Topic 7 Question 91 Discussion

Actual exam question for Cisco's 300-420 exam

Question #: 91
Topic #: 7

[All 300-420 Questions]

At which layer does Cisco Express Forwarding use adjacency tables to populate addressing information?

ALayer4

BLayer 2

CLayer 1

DLayer 3

Show Suggested Answer

Suggested Answer: B

by My at Jun 19, 2024, 09:29 AM

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Dolores

9 months ago

Wow, I didn't know that! Thought it was Layer 4!

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Mila

9 months ago

Yep, adjacency tables are definitely Layer 3.

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Shantay

10 months ago

Wait, are you guys sure? I thought it was Layer 2.

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Lisandra

10 months ago

Totally agree, Layer 3 is where it's at.

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Elouise

10 months ago

It's Layer 3, for sure!

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Kiera

10 months ago

I feel like it could be Layer 3, but I also recall some discussions about Layer 2 in class. It's a bit confusing!

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Diego

11 months ago

Wasn't there something about how Cisco uses these tables for MAC addresses? That sounds like Layer 2 to me.

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Rodney

11 months ago

I remember practicing a question about forwarding and Layer 3, so I might lean towards that.

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Chantay

11 months ago

I think adjacency tables are related to Layer 2, but I'm not entirely sure.

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Pamella

11 months ago

Layer 2 seems like it could be the right answer, since that's where MAC addresses are used. But I'm not completely confident, so I'll have to review my notes before selecting an answer.

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Quinn

11 months ago

Okay, I remember learning about Cisco Express Forwarding in my networking class. I believe it uses adjacency tables to populate addressing information at the Layer 3 level, so I'm going to select D.

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Ronnie

11 months ago

Hmm, I'm a bit confused on this one. I know Cisco Express Forwarding is related to routing, but I'm not sure which layer it operates at. I'll have to think this through carefully.

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Lilli

11 months ago

I'm pretty sure this has to do with the network layer, so I'm going to go with D. Layer 3.

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Vallie

11 months ago

This is a tricky one. I'll need to think through the different options carefully.

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Fabiola

11 months ago

I wish I could remember the effects of similar policies we studied; I feel like the overall job security might decrease with threats of dismissal looming over the team.

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Audry

11 months ago

I think the key here is to prevent toll fraud, so I'm going to go with option C - transfer rules. That seems like the most direct way to control the phone numbers that can be used for transfers.

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Pamella

11 months ago

This is straightforward. The servers in EPG Web need to communicate with the external network, so the default gateway must be the subnet address of the L3Out. Option B is the correct answer.

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Olen

1 year ago

Layer 4? What is this, a trick question? Cisco Express Forwarding is all about moving packets from A to B, and that's definitely a Layer 3 thing. D is the way to go, no doubt about it.

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Regenia

1 year ago

Definitely not Layer 4, it's all about Layer 3 for this one.

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Willard

1 year ago

Yeah, Layer 3 makes the most sense for Cisco Express Forwarding.

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Hyun

1 year ago

I think it's Layer 3 too. D is the correct answer.

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Jamie

1 year ago

Adjacency tables? That's just a fancy way of saying 'address book', right? I'm going with D, Layer 3, because that's where the magic happens.

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Joaquin

1 year ago

Exactly, Layer 3 is where the magic happens with Cisco Express Forwarding.

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Dahlia

1 year ago

So, adjacency tables are like the address book for routing decisions in Layer 3.

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Alayna

1 year ago

Yes, Layer 3 is where the routing decisions are made based on the information in the adjacency tables.

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Arlen

1 year ago

I think you're right, Layer 3 is where Cisco Express Forwarding uses adjacency tables.

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Oren

1 year ago

I'm pretty sure Cisco Express Forwarding is all about Layer 3, so D has got to be the right answer. Unless they're trying to trick us with some fancy networking wizardry.

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