Discuss Nokia 4A0-100 Exam Topic 7 Question 95

Which of the following are correct statements about MPLS labels (Choose three.)?

AA series of labels from one LER to another LER represent a logical tunnel known as an LSP.

BLabels used for a LSP may be static but are usually signaled dynamically with an MPLS label signaling protocol.

CLabels are locally significant to the MPLS router which means its possible for two routers on the LSP path to use the same label.

DLabels are globally significant to the MPLS network which means all labels on the LSP path must be unique.

ELabels used for an LSP must be statically assigned by the service provider.

Suggested Answer: D

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32 comments · newest first

Janine 11 months ago

I thought labels had to be unique across the whole network, not just locally!

Kimberlie 11 months ago

Labels are usually signaled dynamically, not just static.

Lea 11 months ago

Wait, are labels really globally significant? That sounds off.

Lawrence 11 months ago

I agree, labels are locally significant, so they can repeat on different routers.

Sabine 12 months ago

A series of labels from one LER to another LER is definitely an LSP.

Genevive 12 months ago

D seems wrong to me because I remember that labels are not globally significant; they can be reused by different routers on the same path.

Chantay 1 year ago

I recall that labels are locally significant, which makes C seem correct. I think we discussed how different routers can use the same label without conflict.

Glory 1 year ago

I’m a bit unsure about the static vs dynamic labeling. I think B sounds right because we talked about signaling protocols in class, but I’m not completely confident.

Kimbery 1 year ago

I remember that LSP stands for Label Switched Path, and it definitely involves labels from one LER to another, so I think A is correct.

Jina 1 year ago

Okay, I remember learning about MPLS labels in class. I think the key is understanding the difference between locally significant and globally significant labels. That should help me identify the correct statements.

Jennifer 1 year ago

Hmm, I'm a bit unsure about this one. The question is asking about specific details of MPLS labels that I'm not totally confident about. I'll have to think it through carefully.

Willie 1 year ago

This question seems straightforward, I think I can handle it. Let me carefully read through the options and think about what I know about MPLS labels.

Keneth 1 year ago

Ah, this is a good one. MPLS labels are an important networking concept, so I'm glad to see a question on it. I'll use my knowledge of MPLS tunnels and signaling protocols to work through the options.

Shay 1 year ago

I'm a bit confused on this one. I'll need to review my notes to refresh my memory on the best practices for these ITSI functions.

Cletus 1 year ago

Ugh, MPLS labels, really? Okay, let's think this through... B is right, labels are usually signaled dynamically. C and D are also correct, labels are locally significant and must be unique across the network. I'm pretty sure A and E are wrong, but I'm not 100% sure. Time to make an educated guess and move on to the next question.

Beata 1 year ago

↳ replying to Cletus

I agree, A and E are incorrect, labels do not need to be statically assigned by the service provider.

Alona 1 year ago

↳ replying to Cletus

Yes, C and D are also correct, labels are locally significant and must be unique across the network.

Stevie 1 year ago

↳ replying to Cletus

I think you're right, B is correct, labels are usually signaled dynamically.

Carlota 1 year ago

Hah, easy peasy! B, C, and D are the correct ones. I always remember that MPLS labels are like secret codes that routers use to keep track of the traffic, and they have to be unique so the network doesn't get confused. Now, where's the coffee? I need a caffeine boost for the rest of this exam.

Jaime 1 year ago

↳ replying to Carlota

Let's grab some coffee after this exam, I could use a caffeine boost too!

Jeniffer 1 year ago

↳ replying to Carlota

Labels need to be unique to avoid confusion in the network. It's important for smooth traffic flow.

Craig 1 year ago

↳ replying to Carlota

I agree, B, C, and D are the correct statements. MPLS labels are like secret codes for routers.

Lettie 1 year ago

Hmm, let's see... A, B, and C. Wait, no, D too. Labels must be unique across the MPLS network, not locally significant. I guess my MPLS knowledge is a bit rusty, time to hit the books again.

Terina 1 year ago

↳ replying to Lettie

Don't worry, it's always good to brush up on MPLS knowledge. Keep learning!

Geraldo 1 year ago

↳ replying to Lettie

Actually, D is also correct. Labels must be unique across the MPLS network.

Yesenia 1 year ago

↳ replying to Lettie

I think A, B, and C are correct. Labels represent a logical tunnel between LERs.

Glory 2 years ago

B, C, and D are correct. Labels are usually signaled dynamically, can be reused on different routers, and must be unique across the MPLS network. I'm glad they didn't ask about MPLS traffic engineering, that's a whole other can of worms!

Tricia 1 year ago

↳ replying to Glory

Yeah, MPLS traffic engineering can get pretty complicated. It's good they didn't ask about that!

Felicia 1 year ago

↳ replying to Glory

I agree, B, C, and D are the correct statements about MPLS labels.

Isaac 2 years ago

I'm not sure about C and E, but A, B, and D seem right to me.

Portia 2 years ago

I agree with Glory, those statements make sense.

Glory 2 years ago

I think A, B, and D are correct.

Nokia 4A0-100 Exam - Topic 7 Question 95 Discussion