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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
5 months ago
No way, it's definitely not iLER and eLER!
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Leana
6 months ago
I think it's PE and P, but I'm not sure.
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Pamella
6 months ago
Totally agree, LSR and LER are the right terms!
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Olene
6 months ago
It's definitely LSR and LER.
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Quentin
6 months ago
Wait, is it really LSR and LER? I thought it was something else.
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Ivan
6 months ago
I thought it was iLER and eLER, but that doesn't sound right for this question.
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Myra
7 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
7 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
7 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
7 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
7 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
8 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
8 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
8 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
11 months 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
10 months ago
C) LSR, LER
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Geraldo
11 months ago
B) LER, LSR
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Lashawnda
11 months ago
A) PE, P
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France
11 months ago
I'm not sure, but I think it makes sense. Let's go with A) PE, P.
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Reyes
11 months 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
11 months 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
10 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
10 months ago
I believe it's A) PE, P. 'PE' stands for Provider Edge and 'P' stands for Provider.
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Yuonne
10 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
12 months ago
I agree with Louann, because PE is the provider edge and P is the provider.
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Lorenza
12 months 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
10 months ago
Definitely, LSR and LER are the correct choices.
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Cherry
10 months ago
That makes sense, LSR at the beginning and LER at the end.
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Yesenia
11 months ago
Yeah, the Label Switching Router starts it and the Label Edge Router ends it.
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Elfriede
11 months ago
I think you're right, it's C) LSR, LER.
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Louann
12 months ago
I think the answer is A) PE, P.
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Tamie
12 months 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
11 months 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
11 months ago
C) LSR, LER
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Junita
11 months ago
B) LER, LSR
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Dorethea
11 months ago
A) PE, P
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