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?

ADot1p

BDEI

CEXP

DDSCP/PREC

Show Suggested Answer

Suggested Answer: D

by Roxane at Dec 05, 2024, 09:24 AM

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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

6 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

5 months ago

Yeah, I agree. DSCP/PREC is the correct choice for pre-marking QoS in Layer 3 packets.

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Simona

5 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

5 months ago

D) DSCP/PREC

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Rebbeca

5 months ago

C) EXP

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Nguyet

5 months ago

B) DEI

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Naomi

5 months ago

A) Dot1p

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Paris

6 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

6 months ago

D for sure. The other choices are more for lower layer protocols like Ethernet and MPLS.

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Luisa

6 months ago

I believe C) EXP can also be pre-marked in Layer 3 packets.

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Rosamond

6 months ago

I'm not sure, but I think A) Dot1p could also be pre-marked.

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Taryn

6 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

5 months ago

D) DSCP/PREC

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Jettie

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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Beckie

5 months ago

C) EXP

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Jenise

5 months ago

B) DEI

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Louis

5 months ago

A) Dot1p

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Veronique

6 months ago

I agree with Christoper, DSCP/PREC makes sense for pre-marking.

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Christoper

6 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

5 months ago

Yes, DSCP/PREC is the Layer 3 field for QoS marking.

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Rodrigo

5 months ago

Agreed, DSCP/PREC is the correct field for QoS marking.

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Hoa

5 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

6 months ago

B) DEI

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Adell

6 months ago

A) Dot1p

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