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Which of the following statements about multi-homing for a Layer-2 service is TRUE?
Suggested Answer: C
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41 comments · newest first
BE
Bernardo
11 months ago
B is definitely wrong, traffic flow is different in single-active mode.
ET
Ettie
11 months ago
Wait, really? Only two PEs for multi-homing? That’s surprising!
KI
Kiera
11 months ago
D seems off, I thought Nokia 7750 could handle more than two.
JE
Jeniffer
11 months ago
I thought C was true too, all-active sounds right!
AS
Ashlyn
12 months ago
A is correct, single-active mode needs LAG.
TO
Tora
12 months ago
I don't think option D is right; I recall the Nokia 7750 SR can support more than two PEs for multi-homing, but I need to double-check that.
RO
Rosalind
1 year ago
I feel like option C is correct because in all-active mode, all PEs should be able to handle traffic, but I can't recall the specifics.
VA
Valentine
1 year ago
I remember practicing a question about single-active mode, and I think it was mentioned that the CE only forwards to one PE, which makes me lean towards option B.
EZ
Ezekiel
1 year ago
I think option A sounds familiar, but I'm not entirely sure if LAG is always required in single-active mode.
NA
Nancey
1 year ago
I feel pretty confident about this one. The all-active mode description sounds right to me, and I don't see any issues with the other options. I'll go with C as my final answer.
RU
Ruby
1 year ago
Wait, I'm a bit confused. Is the Nokia 7750 SR detail relevant here or just a distractor? I'll need to make sure I understand how that fits in with the other information provided.
CA
Cary
1 year ago
Okay, I think I've got a handle on this. The key is understanding the behavior of the CE in each mode - in single-active it forwards to all PEs but receives from only one, while in all-active it can forward and receive from all attached PEs.
MA
Marion
1 year ago
Hmm, this looks like a tricky question about multi-homing for Layer-2 services. I'll need to carefully read through the options and think about the key differences between single-active and all-active modes.
SE
Selma
1 year ago
I've got a good strategy for this. I'll first eliminate any options that are clearly incorrect, then carefully compare the remaining options to identify the one that is definitively true based on the information given.
PA
Pamela
1 year ago
Option B makes a lot of sense to me. The economic waste is a major issue that likely has a big impact on care quality.
AI
Aileen
1 year ago
I'm not sure if UDP or TCP is the better protocol here. I'll have to weigh the pros and cons of each.
DO
Donte
1 year ago
Okay, let's see... I think the key here is routing calls to an unknown domain, so it's probably not a SIP trunk or neighbor zone. I'm leaning towards B or C.
DE
Deandrea
1 year ago
I bet the correct answer is hidden somewhere in the fine print. Probably needs a magnifying glass to find it.
CR
Craig
1 year ago
C) In the all-active mode, all PEs attached to a CE can forward traffic to and from the CE.
JA
Jade
1 year ago
B) In the single-active mode, the CE forwards traffic to all attached PEs and receives traffic from a single PE.
XU
Xuan
1 year ago
C) In the all-active mode, all PEs attached to a CE can forward traffic to and from the CE.
FR
Freeman
1 year ago
B) In the single-active mode, the CE forwards traffic to all attached PEs and receives traffic from a single PE.
LE
Lettie
1 year ago
A) In the single-active mode, the CE requires a LAG to be configured between the CE and all attached PEs.
IL
Ilona
1 year ago
A) In the single-active mode, the CE requires a LAG to be configured between the CE and all attached PEs.
CE
Cecil
2 years ago
D has to be the right choice. The Nokia 7750 SR supports multi-homing to a maximum of two PEs, so that's the true statement.
RO
Roselle
1 year ago
No, in the single-active mode, the CE requires a LAG to be configured between the CE and all attached PEs.
LO
Lottie
1 year ago
So, in the single-active mode, the CE forwards traffic to all attached PEs and receives traffic from a single PE, right?
KE
Kerry
1 year ago
That's true, D is the right choice for this question.
JO
Josefa
1 year ago
I think D is correct, the Nokia 7750 SR does support multi-homing to a maximum of two PEs.
CA
Carli
2 years ago
Hmm, I'm not sure about the correct answer. Maybe I should have paid more attention in my Layer-2 networking class.
ED
Edward
2 years ago
I think B is the right answer. The CE forwards traffic to all attached PEs but receives from a single PE in the single-active mode.
TE
Telma
1 year ago
Yes, that's correct. In the all-active mode, all PEs attached to a CE can forward traffic to and from the CE.
HA
Hannah
1 year ago
I agree, B is correct. The CE forwards traffic to all attached PEs but receives from a single PE in single-active mode.
JU
Junita
2 years ago
But in the all-active mode, all PEs can forward traffic, not just one.
JE
Jettie
2 years ago
Option C seems correct to me. In the all-active mode, all PEs attached to a CE can forward traffic in both directions.
CR
Crissy
1 year ago
That's correct. It's a different setup compared to the all-active mode.
AN
An
1 year ago
So, in the single-active mode, the CE only forwards traffic to one PE?
NO
Nobuko
1 year ago
Yes, that's right. It allows for better redundancy and load balancing.
SO
Son
1 year ago
I think option C is correct. All PEs can forward traffic in the all-active mode.
VI
Vincent
2 years ago
I disagree, I believe the answer is A.
JU
Junita
2 years ago
I think the answer is C.