Juniper JN0-281 Exam - Topic 3 Question 5 Discussion

Actual exam question for Juniper's JN0-281 exam

Question #: 5
Topic #: 3

Exhibit:

How many stages are shown in the exhibit?

Show Suggested Answer

Suggested Answer: D

The exhibit shows a Folded IP Clos Architecture, which is also referred to as a 3-stage Clos network design. This architecture typically consists of two layers of switches:

Spine Layer: The top row of switches.

Leaf Layer: The bottom row of switches.

Step-by-Step Breakdown:

Clos Architecture:

A 3-stage Clos network has two types of devices: spine and leaf. In this design, each leaf switch connects to every spine switch, providing a high level of redundancy and load balancing.

Stage Explanation:

Stage 1: The first set of leaf switches.

Stage 2: The spine switches.

Stage 3: The second set of leaf switches.

The Folded Clos architecture shown here effectively 'folds' the 3-stage design by combining the ingress and egress leaf layers into one, reducing it to two visible layers, but still maintaining the overall 3-stage architecture.

Juniper Reference:

IP Clos Architecture: The 3-stage Clos design is commonly used in modern data centers for high availability, redundancy, and scalability.

by Queen at Apr 06, 2025, 03:09 AM

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Lemuel

7 months ago

Looks like 2 to me, but I could be wrong!

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Paz

7 months ago

Wait, are you sure? I thought it was 6.

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Ramonita

7 months ago

I see 5 stages in the exhibit.

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Nelida

7 months ago

I counted 3, but I might be missing something.

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Annett

7 months ago

Totally agree, it's definitely 5!

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Rikki

8 months ago

I’m leaning towards 2 stages, but I’m not confident. I wish I had practiced more with visual exhibits like this.

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Maryrose

8 months ago

I feel like there might be 6 stages, but I can't recall the details. I should have reviewed that section more.

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Wilson

8 months ago

I remember a similar question about stages, and I think the answer was 5. But this one feels different.

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Isabelle

8 months ago

I think there were 3 stages in the exhibit, but I'm not entirely sure. I need to double-check my notes.

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Marta

9 months ago

This is a tricky one, but I think I can see 3 distinct stages in the exhibit. I'll select option D.

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Man

9 months ago

I'm a bit confused by this question. The image doesn't seem to have a clear number of stages. I'll have to guess and go with option D.

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Teddy

9 months ago

Okay, let me take another look. I see 2 main stages, so I'll choose option A.

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Ivory

9 months ago

The image is a bit unclear, but I'm pretty sure I can count 6 stages, so I'll select option C.

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Launa

9 months ago

Hmm, I think I can see 5 distinct stages in the exhibit, so I'll go with option B.

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Ernie

1 year ago

Ooh, a trick question! I bet it's not even a real network diagram, it's just a picture of a hamster on a wheel. *laughs* Gonna go with A) 2 stages, just to be different.

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Larue

1 year ago

User 4: I'm sticking with 2 stages, just for fun.

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Luisa

1 year ago

User 3: I'll go with 3 stages.

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Eve

1 year ago

User 2: I'm going with 6 stages.

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Lonny

1 year ago

User 1: I think it's 5 stages.

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Graham

1 year ago

B) 5 stages, no doubt about it. Gotta be careful with these tricky questions, they're always trying to catch you out. I'm feeling confident on this one though.

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Marquetta

1 year ago

D) 3

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Mignon

1 year ago

B) 5 stages, no doubt about it.

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Tammy

1 year ago

A) 2

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Junita

1 year ago

Hmm, I see your point. But I still think there are 6 stages based on the diagram.

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Dorothea

1 year ago

I'm gonna go with D) 3 stages. Looks like a simple process flow to me. Maybe the folks who wrote this question have never seen a real network before. *chuckles*

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