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Nokia 4A0-107 Exam - Topic 2 Question 84 Discussion

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?
A) The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress. and B) The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.
C) The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.
D) The EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

Nokia 4A0-107 Exam - Topic 2 Question 84 Discussion

Actual exam question for Nokia's 4A0-107 exam
Question #: 84
Topic #: 2
[All 4A0-107 Questions]

When deploying a Nokia MPLS network with QoS, how are the EXP bits set?

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Suggested Answer: A, B

by Hubert at Apr 06, 2025, 08:06 AM

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Arminda
8 months ago
Surprised there's so much debate! I thought it was straightforward.
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Whitney
9 months ago
Wait, are we sure about that? I thought it was A.
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Theron
9 months ago
I think option B is correct. It's all about the network policy.
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Devorah
9 months ago
Definitely agree with B! Makes the most sense.
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Clement
9 months ago
C sounds right too, but I’m leaning towards B.
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Nadine
9 months ago
I feel like option D could be the right answer since it mentions a default map, which seems to align with what we discussed in class about translating DSCP codes.
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Thaddeus
10 months ago
I vaguely recall that the dot1p header might be involved, so maybe option C is correct? But I can't quite remember the details.
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Antonio
10 months ago
I think option B sounds familiar from our practice questions, where the SAP-ingress classification plays a role in setting the EXP bits.
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Malissa
10 months ago
I remember something about the DSCP value and how it relates to the EXP bits, but I'm not sure if it's directly copied or if there's a mapping involved.
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Joni
10 months ago
This is a tricky one, but I'm going to go with option C. The dot1p priority bits seem the most straightforward way to set the EXP field.
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Muriel
11 months ago
I think copying the DSCP bits directly to the EXP field makes the most sense, so I'm leaning towards option A.
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Niesha
11 months ago
The key is understanding how the Nokia MPLS network handles QoS. Option D sounds like the most logical approach, translating DSCP to forwarding classes.
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Edison
11 months ago
Hmm, I'm a bit confused on the difference between DSCP and dot1p here. I'll need to review those concepts again before deciding.
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Narcisa
11 months ago
I'm pretty sure the EXP bits are set based on the network policy, so I'll go with option B.
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Tanesha
1 year ago
B is the way to go, folks. Gotta love that combination of SAP-ingress and network policy. It's like a secret sauce for your MPLS network. Just don't forget the croutons.
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Lashonda
1 year ago
C) The 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.
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Tonette
1 year ago
B) The EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.
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Santos
1 year ago
A) The first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.
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Brittney
1 year ago
Option A sounds good to me. Why do extra work when you can just copy the DSCP bits? Unless, of course, you want your network to work correctly. Hmm, tough choice.
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Alayna
1 year ago
User 4: It's important to consider all factors, so maybe option B is more reliable.
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Fatima
1 year ago
User 3: I prefer simplicity, so I agree with option A.
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Virgina
1 year ago
User 2: But what about network policy and classification? Option B considers that.
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Melvin
1 year ago
User 1: I think option A is the way to go, just copy the DSCP bits.
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Kristeen
1 year ago
I'm not sure, but I think the 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.
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Miles
1 year ago
C is the way to go! Why complicate things when you can just copy the priority bits straight across? That's the Nokia way, baby!
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Brittani
1 year ago
I'm going with D. It's all about translating DSCP to internal forwarding classes, right? Keeps things nice and simple.
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Latonia
1 year ago
User 2: Yeah, it's about translating DSCP codes into internal forwarding classes.
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Esteban
1 year ago
User 1: I think D is the correct option.
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Jerilyn
1 year ago
Option B makes the most sense to me. The EXP bits should be set based on the traffic classification and network policy, not just copied from DSCP or dot1p.
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Lavelle
1 year ago
I believe the EXP bits are actually set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.
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Mila
1 year ago
I think the EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.
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