Cisco Exam 300-420 Topic 4 Question 92 Discussion

Actual exam question for Cisco's 300-420 exam

Question #: 92
Topic #: 4

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?

AEth1/2 on SW2 and SW3 will be in a Desg FWD state

BEth1/3 on SW2 and SW3 will be m an Attn BLK state

CEth1/2 on SW3 and SW4 will be m an Attn BLKbtate.

DEth1/1 on SW1 and SW2 will be in a Root FWD state.

Show Suggested Answer

Suggested Answer: B

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

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Cristy

2 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

11 days ago

Cheryl: True, it's like solving a puzzle!

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Cheryl

17 days ago

User 2: Definitely, but it's always satisfying when you come up with a clever solution.

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Cecil

21 days ago

User 1: I know right, network design can be tricky sometimes.

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Jenelle

2 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

2 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

27 days ago

User2: Yeah, 'Desg FWD' state does sound like a wild party for the ports.

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Willodean

1 months ago

User1: I think option D makes sense, considering the RSTP protocol.

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Billi

2 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

2 months ago

Ronny: Sounds like a plan, let's see if the engineer had a trick up their sleeve.

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Ronnie

2 months ago

User 3: I agree, let's go with option A and see if it fits like Tetris.

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Ronny

2 months ago

User 2: Yeah, it does seem like a logical solution.

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Katy

2 months ago

User 1: I think option A sounds like a good choice.

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Lou

2 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

2 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

3 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

3 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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