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Nokia 4A0-C02 Exam - Topic 9 Question 61 Discussion

Actual exam question for Nokia's 4A0-C02 exam
Question #: 61
Topic #: 9
[All 4A0-C02 Questions]

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At router PE1, customer packets are arriving tagged with a dotlp value of 6 and marked with a DSCP value of EF.

Based on the configuration shown below for a VPLS service, what will be the DSCP and EXP marking for the packet egressing the network port on this PE router? (Choose two)

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Suggested Answer: C, E

by Thurman at Dec 10, 2022, 12:47 PM

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Shalon
5 months ago
af21 seems way off, though.
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Kimberlie
6 months ago
I think the EXP value will be set to 4.
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Maryann
6 months ago
Wait, are we sure about the EXP value?
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Amie
6 months ago
Totally agree with that!
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Leigha
6 months ago
The DSCP value will remain as ef.
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Hester
6 months ago
I vaguely remember that the EXP value corresponds to the DSCP marking, but I can't remember if it should be set to 3 or 4 in this scenario.
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Bettina
6 months ago
I feel like the DSCP should stay as ef since it’s already marked for expedited forwarding, but I’m not completely confident about the EXP value.
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Gilberto
6 months ago
I think we practiced a similar question where the DSCP was mapped to a different value, but I can't recall if it was af21 or af23.
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Dell
7 months ago
I remember something about DSCP values and how they relate to different classes of service, but I'm not sure if ef would remain unchanged in this case.
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Rodrigo
7 months ago
All of the above seems like the most comprehensive answer. The malpractice system is clearly problematic in multiple ways.
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Skye
7 months ago
Okay, let me see if I can break this down. UNDO_RETENTION specifies how long Oracle tries to keep UNDO data, both expired and unexpired. But GUARANTEED RETENTION is a separate setting - I'll need to figure out how that impacts the retention of UNDO.
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