Cisco Exam 400-007 Topic 8 Question 44 Discussion

Actual exam question for Cisco's 400-007 exam

Question #: 44
Topic #: 8

Company XYZ, a global content provider, owns data centers on different continents. Their data center design involves a standard three-layer design with a Layer 3-only core. HSRP is used as the FHRP. They require VLAN extension across access switches in all data centers, and they plan to purchase a Layer 2 interconnection between two of their data centers in Europe. In the absence of other business or technical constraints, which termination point is optimal for the Layer 2 interconnection?

Aat the core layer, to otter the possibility to isolate STP domains

Bat me aggregation layer because it is the Layer 2 to Layer 3 demarcation point

Cat the access layer because the STP root bridge does not need to align with the HSRP active node.

Dat the core layer because all external connections must terminate there for security reasons

Show Suggested Answer

Suggested Answer: B

by Lucy at Jul 10, 2024, 07:37 PM

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Moon

4 months ago

I'm feeling a bit like a Layer 8 error here, but I'll go with D. Can't go wrong with the demarcation point, right? Unless, of course, you're a fan of layer violations. *wink wink*

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Marti

3 months ago

Totally agree. Layer 8 errors can be tricky, but sticking with the demarcation point is a safe bet.

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Krystina

4 months ago

I think D is the best choice. It's all about that demarcation point.

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Nan

4 months ago

D all the way, baby! Gotta love that Layer 2 to Layer 3 demarcation point. Keeps things nice and tidy, you know?

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Phung

3 months ago

D) at the aggregation layer because it is the Layer 2 to Layer 3 demarcation point

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Dan

3 months ago

B) at the access layer because the STP root bridge does not need to align with the VRRP active node

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Matthew

3 months ago

A) at the core layer, to offer the possibility to isolate STP domains

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Jeff

4 months ago

Hmm, I'm not sure. Option B sounds interesting, but I think D is the way to go. The aggregation layer seems like the natural choice here.

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Margart

4 months ago

Yeah, I think D is the optimal termination point for the Layer 2 interconnection.

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Belen

4 months ago

The aggregation layer does seem like a natural choice.

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Rosann

4 months ago

I agree, but I think D is the way to go.

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Mindy

4 months ago

I think Option B is interesting.

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Mila

4 months ago

I think the best option is to have it at the access layer to avoid alignment issues with the VRRP active node.

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Wynell

5 months ago

I see both points, but I think having it at the core layer for security reasons makes sense too.

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Nathalie

5 months ago

I'm going with C. All external connections should terminate at the core layer for security reasons, as the question states.

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Allene

3 months ago

I see your point, but I still think C is the most secure option. All external connections should terminate at the core layer.

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Brunilda

3 months ago

I disagree, I believe D is the optimal choice. The aggregation layer is the demarcation point between Layer 2 and Layer 3.

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Amie

3 months ago

I think A is the best option. Isolating STP domains at the core layer makes sense.

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Annett

3 months ago

I'm going with C. All external connections should terminate at the core layer for security reasons.

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Odelia

4 months ago

I agree with B, the STP root bridge doesn't need to align with the VRRP active node.

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Loren

4 months ago

I think A is the best option to isolate STP domains.

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Cammy

5 months ago

I disagree, I believe it should be at the aggregation layer because that's the demarcation point between Layer 2 and Layer 3.

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Sherly

5 months ago

Option D makes the most sense to me. The aggregation layer is the demarcation point between Layer 2 and Layer 3, so it's the logical place to terminate the Layer 2 interconnection.

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