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Huawei H12-821_V1.0 Exam - Topic 5 Question 95 Discussion

Which of the following statements regarding the MED value in BGP are true?
A) According to BGP route selection rules, the MED value has a lower priority than AS_Path, Preferred-Value, Local-Preference, and Origin. and D) By default, if there is no MED value in routes, the value 0 is used. If the bestroute med-none-as-maximum command is configured, the maximum MED value 4294967295 is used.
B) The default MED value of BGP routes is 0.
C) By default, BGP can compare the MED values of routes from different ASs.

Huawei H12-821_V1.0 Exam - Topic 5 Question 95 Discussion

Actual exam question for Huawei's H12-821_V1.0 exam
Question #: 95
Topic #: 5
[All H12-821_V1.0 Questions]

Which of the following statements regarding the MED value in BGP are true?

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Suggested Answer: A, D

The MED (Multi-Exit Discriminator) is an optional, non-transitive attribute used to influence the exit path. MED is considered after attributes such as Local-Preference, AS-Path, and Origin during route selection. By default, if a MED value is missing, it is treated as 0 unless the bestroute med-none-as-maximum command is configured to treat it as 4294967295 .


by Mollie at Apr 07, 2026, 09:03 PM

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Linsey
6 hours ago
A) is true, MED is lower priority.
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Agustin
5 days ago
Wait, can we really use 4294967295? Sounds too high!
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Leslee
11 days ago
D) is interesting, didn't know about that max MED value!
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Lashawnda
16 days ago
C) is false, BGP doesn't compare MED across ASs by default.
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Maynard
2 months ago
B) is correct, default MED is indeed 0.
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An
2 months ago
A) is true, MED is lower priority than those.
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Herman
3 months ago
For option D, I remember something about default values, but I’m not clear on the specifics of the med-none-as-maximum command. It sounds familiar though.
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Youlanda
3 months ago
I recall that option C might be tricky; I think BGP only compares MED values for routes within the same AS, but I could be wrong.
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Samira
3 months ago
I'm not entirely sure about option B, but I feel like the default MED value is indeed 0, similar to what we discussed in class.
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Bernardo
3 months ago
I think option A is correct because I remember that MED is considered after Local Preference and AS Path in the BGP decision process.
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