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Nokia Exam 4A0-107 Topic 2 Question 78 Discussion

Actual exam question for Nokia's 4A0-107 exam
Question #: 78
Topic #: 2
[All 4A0-107 Questions]

Which of the following fields in packets belonging to a Layer 3 service can be pre-marked on SAP-ingress?

Show Suggested Answer Hide Answer
Suggested Answer: D

Contribute your Thoughts:

Karma
5 months ago
I'm going to have to go with D. The others just seem like they'd be more for Layer 2 or something. Unless this is a trick question and the answer is actually a duck.
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Bette
5 months ago
Hmm, I'm tempted to go with C. EXP, since that's the MPLS field for QoS. But I guess that's not really a Layer 3 thing.
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Freeman
4 months ago
Yeah, I agree. DSCP/PREC is the correct choice for pre-marking QoS in Layer 3 packets.
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Simona
4 months ago
I think D. DSCP/PREC is the field in Layer 3 packets that can be pre-marked for QoS.
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Tyisha
4 months ago
D) DSCP/PREC
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Rebbeca
4 months ago
C) EXP
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Nguyet
4 months ago
B) DEI
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Naomi
4 months ago
A) Dot1p
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Paris
5 months ago
D for sure. The other choices are more for lower layer protocols like Ethernet and MPLS.
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Rosio
5 months ago
Yes, DSCP/PREC is the correct choice for Layer 3 service packets.
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Whitley
5 months ago
I agree, DSCP/PREC is the field in Layer 3 packets that can be pre-marked on SAP-ingress.
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Corinne
5 months ago
D for sure. The other choices are more for lower layer protocols like Ethernet and MPLS.
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Luisa
5 months ago
I believe C) EXP can also be pre-marked in Layer 3 packets.
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Rosamond
5 months ago
I'm not sure, but I think A) Dot1p could also be pre-marked.
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Taryn
5 months ago
Yeah, D makes the most sense to me too. Can't really see any of the other options being relevant at Layer 3.
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German
4 months ago
D) DSCP/PREC
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Jettie
4 months ago
Yeah, D makes the most sense to me too. Can't really see any of the other options being relevant at Layer 3.
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Beckie
4 months ago
C) EXP
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Jenise
4 months ago
B) DEI
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Louis
4 months ago
A) Dot1p
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Veronique
5 months ago
I agree with Christoper, DSCP/PREC makes sense for pre-marking.
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Christoper
5 months ago
I think the answer is D) DSCP/PREC.
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Amalia
6 months ago
I'm pretty sure it's D. DSCP/PREC, since that's the Layer 3 field for QoS marking.
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Salome
4 months ago
Yes, DSCP/PREC is the Layer 3 field for QoS marking.
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Rodrigo
4 months ago
Agreed, DSCP/PREC is the correct field for QoS marking.
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Hoa
4 months ago
I think it's D. DSCP/PREC too.
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Alpha
5 months ago
D) DSCP/PREC
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Cherilyn
5 months ago
C) EXP
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Nettie
5 months ago
B) DEI
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Adell
5 months ago
A) Dot1p
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