Nokia Exam 4A0-106 Topic 2 Question 45 Discussion

Actual exam question for Nokia's 4A0-106 exam

Question #: 45
Topic #: 2

Click the exhibit.

A Carrier Supporting Carrier (CSC) VPRN is configured for a customer carrier who is an Internet Service Provider (ISP). If CE1 sends an IP packet to 192.60.100.1, which of the following is FALSE?

APE1 pushes an LDP transport label.

BCSC-CE1 pops the LDP label and pushes a BGP label.

CCSC-PE1 pops the BGP label and pushes two labels: a VPN label and an MPLS transport label.

DCSC-PE2 pops the MPLS label and pushes a BGP label.

Show Suggested Answer

Suggested Answer: B

by Lizbeth at Apr 23, 2023, 10:23 AM

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Lonna

2 months ago

Option D is definitely false. The CSC-CE2 node should be popping the VPN label, not pushing an LDP transport label. This is a tricky one!

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Antione

16 days ago

So, the correct answer would be that CSC-CE2 pops the BGP label and pushes a VPN label.

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Salena

20 days ago

Yes, that's correct. It's a tricky question but important to understand the process.

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Eloisa

1 months ago

I agree, option D is definitely false. The CSC-CE2 node should be popping the VPN label.

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Janae

2 months ago

Haha, I bet the exam writers had a field day coming up with this one. CSC networks are like a labyrinth of labels and hops!

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Stevie

3 days ago

A) PE1 pushes an LDP transport label.

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Mable

5 days ago

A: Yeah, it can be tricky to keep track of everything, but practice makes perfect!

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Andrew

20 days ago

C: I still get confused sometimes, especially with all the different labels being pushed and popped.

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Karon

2 months ago

B: Definitely, but once you understand the flow it starts to make sense.

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Rhea

2 months ago

A: I know right! It's like a puzzle trying to figure out all these labels and hops.

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Sherita

2 months ago

I'm not sure about the difference between LDP and BGP labels in this scenario. This question is really testing our understanding of VPRN and CSC networks.

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Dyan

1 months ago

B: That's correct. The LDP label is used for intra-AS MPLS VPN communication.

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Louisa

1 months ago

A: The BGP label is used for inter-AS MPLS VPN communication.

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Vincent

2 months ago

Hmm, that makes sense. I see your point now.

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Blair

2 months ago

Option B seems to be the correct answer. The CSC-PE1 node should pop the BGP label and push the VPN label and the MPLS transport label to forward the packet to the customer carrier network.

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