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HPE7-A03 Exam - Topic 1 Question 38 Discussion

Actual exam question for HP's HPE7-A03 exam
Question #: 38
Topic #: 1
[All HPE7-A03 Questions]

What is one use case for designing a 2-tier campus LAM instead of using a 3-tier?

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Suggested Answer: A

A 2-tier campus LAN architecture, consisting of the core and access layers, is typically suitable for smaller campuses or networks with limited numbers of wiring closets. This simplified architecture eliminates the need for a dedicated aggregation layer, which is more common in larger, more complex network environments (the 3-tier architecture). In a small campus setting with only a few wiring closets, a 2-tier design can provide sufficient performance and scalability, reducing complexity and potentially lowering costs. This architecture allows for direct connectivity between the access layer, where end devices connect to the network, and the core layer, which routes traffic to and from the campus network. The use of a 2-tier architecture in such scenarios is driven by the network's size and the simplicity of its requirements, making it an efficient and effective choice.


by Tammara at Nov 19, 2025, 09:42 AM

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Linwood
14 days ago
Surprised that 2-tier can handle small setups so well!
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Reyes
20 days ago
But what if traffic demands increase later?
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Delpha
25 days ago
Totally agree, it simplifies things!
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Zachary
30 days ago
I'd go with D. Who wants to deal with a bottleneck in the core, am I right?
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Wilbert
1 month ago
Hmm, I guess it depends on how much traffic the campus has. Gotta love these tricky networking questions!
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Audry
1 month ago
D is the correct answer. Cross-campus traffic is the key reason to use a 2-tier design.
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Avery
2 months ago
C seems like the most relevant option to me.
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Lucy
2 months ago
I feel like option B could be a possibility too, but it seems more aligned with a 3-tier setup.
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Erasmo
2 months ago
I'm not entirely sure, but I remember a practice question about scaling issues that might relate to option C.
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Arlie
2 months ago
Okay, I think I've got this. The key is to identify the main benefit of a 2-tier design, which is better scalability for larger campus networks. So I'd go with option B or C, since those describe situations where the network has outgrown a 3-tier approach.
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Elmer
2 months ago
I'm a bit unsure about this one. I know the 2-tier design is more simplified, but I'm not totally clear on when that would be preferable over a 3-tier. Maybe I'd try to reason through the tradeoffs and pick the option that seems to best match the advantages of 2-tier.
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An
2 months ago
Okay, let's see. I'd probably eliminate the first option since that sounds more like a 3-tier use case. The other three seem more relevant - the network has grown beyond a few aggregation points, the access aggregation isn't scaling, or the cross-campus traffic is too much for a single core. I'd try to pick the one that best fits the description.
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Carlee
3 months ago
A 2-tier design is better for small campuses with few wiring closets.
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Reynalda
3 months ago
A 2-tier setup is great for small buildings with few wiring closets.
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Nell
3 months ago
I think option A makes sense since smaller buildings might not need the complexity of a 3-tier design.
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Coletta
3 months ago
I vaguely recall that option D is about traffic capacity, which might not apply to a 2-tier design.
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Kanisha
4 months ago
Hmm, the question is asking for a use case for 2-tier over 3-tier, so I'd focus on the advantages of the 2-tier approach. Maybe something about it being more scalable or efficient for larger campus networks with high traffic demands.
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Novella
4 months ago
I think I'd start by considering the key differences between 2-tier and 3-tier campus LANs. The 2-tier design seems more suitable if the campus is small with just a few wiring closets, or if the network has grown beyond a few aggregation points.
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German
3 months ago
Definitely! Fewer buildings mean less complexity.
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