Discuss Nokia 4A0-116 Exam Topic 2 Question 70

Which of the following statements about Multi-Protocol Label Switching networks is FALSE?

AMPLS uses a signaling protocol to exchange labels between routers.

BAn LSR forwards data based on the MPLS labels.

CAn LSP is a bi-directional tunnel that uses MPLS labels to forward data.

DThe data is transparently carried from end to end.

Suggested Answer: D

The data is transparently carried from end to end: This statement is not true, MPLS does not provide data transparency, which means that the data is not carried unmodified from end to end. MPLS uses labels to forward data, so the original IP packets are encapsulated in new MPLS packets, and the original IP headers are not visible at the egress LSR.

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23 comments · newest first

Howard 2 days ago

Exactly! Transparency is tricky in MPLS.

Arthur 7 days ago

Right, but D implies no changes at all.

Elli 12 days ago

No way, C is true. LSPs are bi-directional.

Gerald 18 days ago

I’m leaning towards C being false. Bi-directional tunnels?

Howard 23 days ago

I agree, D seems off. Labels are key.

Arthur 28 days ago

I think D is false. Data isn't always transparent.

Suzan 1 month ago

Yes, it makes the most sense.

Lucille 1 month ago

So, we all lean towards D being false?

Breana 1 month ago

Exactly! D doesn't hold up in all scenarios.

Johnna 2 months ago

But D implies no changes, which isn't accurate.

Suzan 2 months ago

No way, A is true. Labels need signaling to work.

Lucille 2 months ago

I feel like A is the right answer. Signaling is crucial.

Breana 2 months ago

I agree, D seems off. Transparency can vary.

Johnna 2 months ago

I think D is false. Data isn't always transparent.

Teri 2 months ago

Totally agree with you, France!

Dorcas 3 months ago

LSRs definitely forward based on MPLS labels.

Tien 3 months ago

Wait, is it really bi-directional? That sounds off.

France 3 months ago

I think D is the false one. Data isn't always transparent.

Marquetta 3 months ago

MPLS does use a signaling protocol for labels.

Aja 3 months ago

I’m a bit confused about LSRs and how they forward data. I thought they used labels, but I can't recall if that's always the case.

Rhea 4 months ago

I practiced a question similar to this, and I think D is actually true because MPLS is designed for end-to-end transparency.

Edmond 4 months ago

I'm not entirely sure, but I feel like LSPs are usually uni-directional, which could make C false.

Joanna 4 months ago

I think I remember that MPLS does use a signaling protocol, so A might be true.

Nokia 4A0-116 Exam - Topic 2 Question 70 Discussion