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Cisco 300-420 Exam - Topic 4 Question 92 Discussion

Actual exam question for Cisco's 300-420 exam
Question #: 92
Topic #: 4
[All 300-420 Questions]

Refer to the exhibit.

Refer to the exhibit. An engineer proposed this solution for a company that requires a loop-free. Layer 2 network design. The network will run 802.1W, and all links will be 1 Gbps. If all interfaces are up as point- to-point adjacencies, what are the expected port end states based on the design?

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Suggested Answer: B

by Holley at Jul 03, 2024, 12:59 PM

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Luisa
4 months ago
Not convinced this design will actually work as intended.
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Sharen
4 months ago
Eth1/1 on SW1 and SW2 will definitely be in a Root FWD state!
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Dorsey
4 months ago
Wait, are we sure about Eth1/3 being in an Attn BLK state?
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Viola
5 months ago
Totally agree, that makes sense!
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Erasmo
5 months ago
Eth1/2 on SW2 and SW3 should be in a Desg FWD state.
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Lavonda
5 months ago
I recall that in a loop-free design, some ports will definitely be blocked, but I can't remember which ones specifically. This is tricky!
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Samira
5 months ago
I think Eth1/3 on SW2 and SW3 being in a blocking state makes sense, but I’m not confident about the other options.
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Gilma
5 months ago
This question feels similar to one we practiced where we had to determine port states based on the root bridge. I think Eth1/2 on SW2 and SW3 might be in a forwarding state, but I could be wrong.
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Luz
6 months ago
I remember studying the spanning tree protocol, but I'm not entirely sure how the port states will be affected in this specific design.
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Starr
6 months ago
Alright, I've got a strategy. I'll start by identifying the root bridge, then determine the port roles on each switch based on the 802.1W protocol. That should lead me to the right answer.
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Tyra
6 months ago
I'm a bit confused by the wording of the question. What exactly does "loop-free Layer 2 network design" mean? I'll have to re-read the details carefully.
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Marquetta
6 months ago
Okay, let me think this through step-by-step. The key is understanding how 802.1W handles redundant links to prevent loops. I'll need to identify the root bridge and work from there.
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Linn
6 months ago
Hmm, this looks like a tricky spanning tree question. I'll need to carefully analyze the network topology and the 802.1W protocol to determine the expected port states.
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Kathrine
6 months ago
This seems straightforward. The exhibit shows a simple redundant topology, so the port states should be pretty clear once I apply the 802.1W rules. I'm confident I can get this one right.
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Isadora
6 months ago
Okay, let's think this through step-by-step. The question is asking for the CPI, which is the Cost-Performance Index. To calculate this, I need to use the formula CPI = EV / AC, where EV is the Earned Value and AC is the Actual Cost.
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Blythe
6 months ago
This seems like a straightforward question about how sampling error can impact job analysis. I'll need to think through the potential issues that could arise from a non-representative sample.
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Chun
6 months ago
I've got a good feeling about this one. Based on my understanding of architecture frameworks, the Standards Information Base is likely a repository for the standards and guidelines that architectures need to conform to. I'll go with that option.
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Cristy
11 months ago
Ah, the joys of network design! I bet the engineer who came up with this solution was feeling pretty clever. Probably sitting there, sipping their coffee, and thinking, 'Wait until they see this one!' I mean, how many times have we all been in that position, where we think we've got the perfect solution, only to have it fall apart like a house of cards? It's all part of the fun, I suppose.
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Lajuana
10 months ago
Cheryl: True, it's like solving a puzzle!
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Cheryl
10 months ago
User 2: Definitely, but it's always satisfying when you come up with a clever solution.
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Cecil
10 months ago
User 1: I know right, network design can be tricky sometimes.
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Jenelle
11 months ago
I'm not sure, but I think the answer might be D) Eth1/1 on SW1 and SW2 will be in a Root FWD state.
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Kenny
11 months ago
Hmm, this is a tricky one. I'm going to go with option D, since it seems to align with the RSTP protocol mentioned in the question. Although, I have to say, the thought of all the ports being in a 'Desg FWD' state is making me a little dizzy. This network design must be a real party!
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Herminia
10 months ago
User2: Yeah, 'Desg FWD' state does sound like a wild party for the ports.
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Willodean
10 months ago
User1: I think option D makes sense, considering the RSTP protocol.
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Billi
12 months ago
Haha, this question is like a game of Tetris - you've got to figure out where all the pieces fit! I'm going to go with option A, just for the fun of it. Who knows, maybe the engineer had a trick up their sleeve.
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Vincenza
11 months ago
Ronny: Sounds like a plan, let's see if the engineer had a trick up their sleeve.
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Ronnie
11 months ago
User 3: I agree, let's go with option A and see if it fits like Tetris.
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Ronny
11 months ago
User 2: Yeah, it does seem like a logical solution.
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Katy
11 months ago
User 1: I think option A sounds like a good choice.
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Lou
12 months ago
I'm not too sure about this one. The question mentions a loop-free Layer 2 network design, so I'm thinking the ports might not be in a forwarding state. Maybe option B or C could be correct, with the ports in an Alternate or Backup state.
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Casie
12 months ago
Okay, let's think this through. The question is asking about the expected port end states based on the given design. I'm leaning towards option D, as the engineer mentioned that the network will run 802.1W, which is Rapid Spanning Tree Protocol. In RSTP, one of the ports will be selected as the root port, and that should be Eth1/1 on SW1 and SW2.
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Sarah
12 months ago
I agree with Brendan, because in a loop-free design with 802.1W, those ports should be in a forwarding state.
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Brendan
12 months ago
I think the answer is A) Eth1/2 on SW2 and SW3 will be in a Desg FWD state.
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