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Consider the exhibit that shows a network with a full mesh fiber structure. Link weights indicate the cost. Future services can be requested between any node pair.
Which of the following topology represents a minimum cost design (minimum overall fiber cost) where link failure survivability is ensured?
A)
B)
C)
D)
Suggested Answer: D
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33 comments · newest first
IN
In
11 months ago
Surprised that Option C is even a contender!
KE
Kerrie
11 months ago
Wait, are we sure about the survivability in Option D?
TA
Tamra
11 months ago
Definitely going with Option A for survivability!
CA
Cassi
11 months ago
I think Option B looks more balanced though.
VA
Val
12 months ago
Option C has the lowest link weights.
LI
Ligia
12 months ago
I vaguely remember that for survivability, we need at least two paths between nodes. I think Option B might fit that, but I need to double-check the link costs.
ME
Merilyn
1 year ago
I’m a bit confused about the link weights and how they factor into survivability. I thought all options should ensure redundancy, but I’m not clear on which one is the cheapest.
MA
Mary
1 year ago
I think we practiced a similar question where we had to balance cost and redundancy. I feel like Option C might be the right choice, but I can't recall the specifics.
FR
Franchesca
1 year ago
I remember studying about minimum spanning trees and how they can help reduce costs, but I'm not sure which option here actually meets the survivability requirement.
RO
Ronnie
1 year ago
This is a tricky one. I'm not sure if I fully grasp the concept of link failure survivability and how that impacts the optimal network design. I'll need to think through the implications of each option and try to reason through the best solution.
RA
Ranee
1 year ago
Okay, I think I've got this. The key is to identify the minimum spanning tree that connects all nodes, while ensuring there are redundant paths between each node pair in case of a link failure. I'll evaluate each option carefully against those criteria.
LE
Leigha
1 year ago
Hmm, I'm a bit unsure about this one. The network topology and link weights seem straightforward, but I'm not confident I fully understand the requirements for link failure survivability. I'll need to review that concept before attempting to solve this.
IS
Isabelle
1 year ago
This looks like a classic network topology optimization problem. I'll need to carefully analyze the link weights and network structure to determine the minimum cost design that ensures link failure survivability.
TR
Trina
1 year ago
I'm feeling a bit optic-al about this one. Better not let my eyes play tricks on me!
TE
Tequila
1 year ago
I believe Option D is the correct choice.
JE
Jessenia
1 year ago
I'm leaning towards Option B.
AL
Alease
1 year ago
I think the answer is Option C.
DO
Dolores
1 year ago
This is a real fiber-ous problem, ain't it? I bet the answer is as clear as fiber-glass if you know where to look.
VO
Vonda
1 year ago
Hmm, I'm leaning towards Option B as the minimum cost design.
AD
Adell
1 year ago
I disagree, I believe the correct answer is Option D.
DE
Denny
1 year ago
I think the answer is Option C.
RE
Reid
1 year ago
Hold up, is Option B the secret sauce here? Looks like it covers all the bases, but I better not jump the gun. Decisions, decisions...
CH
Chanel
2 years ago
Hmm, Option D seems to have the lowest overall fiber cost. But does it really guarantee redundancy? Better double-check the requirements.
AN
Annice
1 year ago
Elbert: Good idea, we don't want to compromise on link failure survivability.
PA
Patti
1 year ago
User 3: Let's double-check the requirements before making a decision.
EL
Elbert
1 year ago
User 2: Yeah, but we need to make sure it guarantees redundancy.
TA
Taryn
1 year ago
User 2
LU
Lucina
1 year ago
User 1: I think Option D has the lowest overall fiber cost.
SH
Shawnna
1 year ago
User 1
AS
Ashton
2 years ago
Option C looks the most cost-effective, but I'm not sure if it ensures link failure survivability. Gotta think this through.
LA
Laurel
2 years ago
Interesting, why do you think Option D is better? Can you explain your rationale?
KA
Kattie
2 years ago
I disagree, I believe Option D is the best choice for minimum overall fiber cost.
LA
Laurel
2 years ago
I think the minimum cost design with link failure survivability is Option C.