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Huawei H12-811_V1.0 Exam - Topic 8 Question 80 Discussion

A switch needs to forward a frame with the destination MAC address 5489-98EC-F011. Refer to the display mac-address command output. Which of the following statements is true?
C) The switch floods the frame on all interfaces except the one on which it received the frame.
A) The switch does not find a matching entry in the MAC address table, so it discards the frame.
B) The switch needs to send a request to discover the device whose MAC address is 5489-98EC-F011.
D) The switch sends an ICMP unreachable message to the source device.

Huawei H12-811_V1.0 Exam - Topic 8 Question 80 Discussion

Actual exam question for Huawei's H12-811_V1.0 exam
Question #: 80
Topic #: 8
[All H12-811_V1.0 Questions]

A switch needs to forward a frame with the destination MAC address 5489-98EC-F011. Refer to the display mac-address command output. Which of the following statements is true?

Show Suggested Answer Hide Answer
Suggested Answer: C

The MAC address table does not contain an entry for 5489-98EC-F011.

When a switch receives a frame with an unknown destination MAC address, it performs flooding.

Flooding sends the frame out of all interfaces except the one it was received on.

A (Incorrect): The switch does not discard unknown frames; it floods them.

B (Incorrect): No request is sent; flooding occurs instead.

D (Incorrect): ICMP is used for network-layer (IP) communication, not Ethernet switching.

Thus, the correct answer is C (Floods the frame on all interfaces except the incoming one).


by Timmy at Mar 22, 2025, 05:13 AM

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Evette
9 months ago
Yeah, B is just not how it goes down in this case.
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Sarah
9 months ago
Wait, does the switch really send an ICMP message? Sounds off.
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Kristal
10 months ago
Definitely option C! That's how switches work.
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Antonio
10 months ago
I think option A is wrong; flooding is the right move here.
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Alva
10 months ago
The switch floods the frame if it doesn't find the MAC.
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Keena
10 months ago
I'm uncertain about the ICMP message option; it seems unrelated to how switches normally handle unknown MAC addresses.
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Karan
11 months ago
I practiced a similar question where the switch flooded the frame, so I feel like option C might be correct here.
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Brittni
11 months ago
I remember something about switches needing to discover devices, but I can't recall if that means sending a request or just flooding.
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Jose
11 months ago
I think the switch would flood the frame if it doesn't find the MAC address in the table, but I'm not completely sure.
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Albina
11 months ago
The key here is understanding how the switch handles unknown MAC addresses. I think option A is the correct answer, as the switch won't find a matching entry and will discard the frame.
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Brock
11 months ago
I'm a bit confused here. Does the switch need to send a request to discover the device, or will it just discard the frame? I'll have to double-check the MAC address table concepts.
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Oretha
12 months ago
Okay, I've got this. The switch will flood the frame on all interfaces except the one it received it on, so I'm going with option C.
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Catarina
12 months ago
Hmm, this seems like a tricky one. I'll need to carefully review the options and think through the MAC address table behavior.
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German
1 year ago
I'm going with Option C. Flooding the frame is the best way to ensure it reaches the destination, even if the MAC address isn't in the table.
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Ahmed
1 year ago
User2: Agreed, flooding the frame is the way to go.
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Oneida
1 year ago
User1: I think Option C is the best choice too.
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Beatriz
1 year ago
I'm not sure, but I think the switch should send a request to discover the device with that MAC address, so my answer is B.
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Dulce
1 year ago
Option A is the way to go. If the switch doesn't find the MAC address in its table, it has no choice but to discard the frame.
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Jade
1 year ago
Cassi: That's right. It just discards the frame if it doesn't have a matching entry.
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Cassi
1 year ago
User 2: So, the switch doesn't flood the frame or send a request to discover the device?
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Alva
1 year ago
User 1: Option A is correct. The switch will discard the frame if it doesn't find a matching entry in the MAC address table.
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Glory
1 year ago
I believe the answer is A, as the switch discards the frame when it doesn't find a matching entry.
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Demetra
1 year ago
I agree with Stefany, because the switch floods the frame when it doesn't have a matching entry.
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Angelo
2 years ago
Haha, Option D is a classic! The switch sending an ICMP unreachable message, that's a good one.
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Stefany
2 years ago
I think the answer is C.
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Avery
2 years ago
I think Option B is the correct answer. The switch needs to send a request to discover the device with that MAC address.
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Joanne
1 year ago
User3: Yes, that makes sense. Option B it is.
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Alex
1 year ago
User2: I agree, the switch needs to send a request to discover the device with that MAC address.
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Jaleesa
1 year ago
User1: I think Option B is the correct answer.
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Ettie
2 years ago
Option C looks good to me. The switch should flood the frame on all interfaces to reach the destination device.
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Beckie
1 year ago
So, the frame will eventually reach the device with MAC address 5489-98EC-F011 through flooding.
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Tashia
1 year ago
Yes, that's correct. The switch floods the frame on all interfaces except the one on which it received the frame.
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Stacey
2 years ago
Option C looks good to me. The switch should flood the frame on all interfaces to reach the destination device.
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