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Nokia 4A0-103 Exam - Topic 2 Question 112 Discussion

Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.
D) iLER, eLER
A) PE, P
B) LER, LSR
C) LSR, LER
E) eLER, iLER
F) P, PE

Nokia 4A0-103 Exam - Topic 2 Question 112 Discussion

Actual exam question for Nokia's 4A0-103 exam
Question #: 112
Topic #: 2
[All 4A0-103 Questions]

Fill in the blanks: The device at the beginning of an LSP is referred to as the_________, and the device at the end of an LSP is referred to as the ___________.

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Suggested Answer: D

by Luis at Jun 13, 2025, 06:44 AM

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Karrie
7 months ago
No way, it's definitely not iLER and eLER!
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Leana
7 months ago
I think it's PE and P, but I'm not sure.
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Pamella
7 months ago
Totally agree, LSR and LER are the right terms!
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Olene
8 months ago
It's definitely LSR and LER.
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Quentin
8 months ago
Wait, is it really LSR and LER? I thought it was something else.
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Ivan
8 months ago
I thought it was iLER and eLER, but that doesn't sound right for this question.
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Myra
8 months ago
I feel like the first one is definitely PE, but I can't recall what the last one is.
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Benedict
8 months ago
I remember practicing a similar question where the terms were mixed up. I think it's LER at the end, but I could be wrong.
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Mitzie
9 months ago
I think the device at the beginning is the LSR, but I'm not sure about the end one.
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Isreal
9 months ago
I think the key here is remembering the difference between PE and P routers, and LER and LSR. The device at the start of the LSP is the LSR, and the one at the end is the LER. I'm feeling good about that.
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Clarence
9 months ago
Wait, I'm confused. Is it the Label Edge Router (LER) and the Label Switching Router (LSR)? Or is it the other way around? I need to double-check my understanding of these terms.
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Nelida
9 months ago
Okay, I've got this. The device at the beginning of an LSP is the Provider Edge (PE) router, and the one at the end is the Provider (P) router. I'm pretty sure that's the right answer.
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Tammara
9 months ago
Hmm, I'm a bit unsure about this one. Let me think it through - I know LSP stands for Label Switched Path, so the devices at the start and end must have something to do with labels. I'll have to review my notes to be sure.
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Lang
10 months ago
I'm pretty confident I know the answer to this one. The device at the beginning of an LSP is called the Label Switching Router (LSR), and the device at the end is called the Label Edge Router (LER).
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Scarlet
1 year ago
Ah, the age-old question of LER vs. LSR. It's like trying to remember the difference between a router and a switch. *chuckles* If only they had named them something more memorable, like 'Jumping Jack' and 'Leaping Larry'.
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Tora
12 months ago
C) LSR, LER
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Geraldo
1 year ago
B) LER, LSR
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Lashawnda
1 year ago
A) PE, P
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France
1 year ago
I'm not sure, but I think it makes sense. Let's go with A) PE, P.
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Reyes
1 year ago
Wait, isn't the answer supposed to be F) P, PE? I mean, P and PE, they sound more like the right terms for the devices, right? *scratches head*
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Adria
1 year ago
Hmm, I'm leaning towards E) eLER, iLER. Though I'm not entirely sure what the 'e' and 'i' stand for in this context. Maybe 'external' and 'internal'? *shrugs*
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Markus
12 months ago
I agree with you, I also think it's E) eLER, iLER. 'eLER' could mean egress LER and 'iLER' could mean ingress LER.
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Sherly
12 months ago
I believe it's A) PE, P. 'PE' stands for Provider Edge and 'P' stands for Provider.
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Yuonne
12 months ago
I think it's actually C) LSR, LER. 'LSR' stands for Label Switching Router and 'LER' stands for Label Edge Router.
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Buck
1 year ago
I agree with Louann, because PE is the provider edge and P is the provider.
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Lorenza
1 year ago
I'm pretty sure the answer is C) LSR, LER. The beginning is the Label Switching Router and the end is the Label Edge Router. Easy peasy.
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Georgene
12 months ago
Definitely, LSR and LER are the correct choices.
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Cherry
12 months ago
That makes sense, LSR at the beginning and LER at the end.
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Yesenia
1 year ago
Yeah, the Label Switching Router starts it and the Label Edge Router ends it.
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Elfriede
1 year ago
I think you're right, it's C) LSR, LER.
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Louann
1 year ago
I think the answer is A) PE, P.
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Tamie
1 year ago
The correct answer is B) LER, LSR. The device at the beginning of an LSP is referred to as the Label Edge Router (LER), and the device at the end of an LSP is referred to as the Label Switching Router (LSR).
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Judy
1 year ago
The correct answer is B) LER, LSR. The device at the beginning of an LSP is referred to as the Label Edge Router (LER), and the device at the end of an LSP is referred to as the Label Switching Router (LSR).
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Reita
1 year ago
C) LSR, LER
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Junita
1 year ago
B) LER, LSR
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Dorethea
1 year ago
A) PE, P
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