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

Click the exhibit button below.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)
C) The DSCP value will remain as ef. and E) The EXP value, in the MPLS headers, will be set to 3.
A) The DSCP value will be set to af21.
B) The DSCP value will be set to af23.
D) The EXP value, in the MPLS headers, will be set to 4.

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]

Click the exhibit button below.

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)

Show Suggested Answer Hide Answer
Suggested Answer: C, E

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

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Shalon
7 months ago
af21 seems way off, though.
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Kimberlie
7 months ago
I think the EXP value will be set to 4.
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Maryann
7 months ago
Wait, are we sure about the EXP value?
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Amie
8 months ago
Totally agree with that!
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Leigha
8 months ago
The DSCP value will remain as ef.
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Hester
8 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
8 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
8 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
8 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
8 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
8 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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