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VMware 3V0-42.23 Exam - Topic 2 Question 17 Discussion

Actual exam question for VMware's 3V0-42.23 exam
Question #: 17
Topic #: 2
[All 3V0-42.23 Questions]

A solutions architect is designing an NSX solution for a customer who has a rapidly growing environment and expects to add more workloads over time. The customer wants to ensure that their NSX Edge clusters can accommodate this growth.

Which two of the following growth patterns for NSX Edge clusters should the solutions architect consider when designing this solution? (Choose two.)

Show Suggested Answer Hide Answer
Suggested Answer: D, B

1. Understanding Edge Cluster Scalability in NSX

NSX Edge clusters play a critical role in North-South traffic management and stateful services such as NAT, VPN, Load Balancing, and Firewalling. As workloads grow, the performance demand on NSX Edge nodes increases, requiring either vertical scaling or horizontal scaling strategies.

2. Explanation of Correct Answers

(B - Vertical Scaling by Increasing Edge Node Size)

Vertical scaling means increasing resource allocation (CPU, RAM, NIC bandwidth) per Edge node to improve performance.

This is achieved by deploying Large or Extra-Large Edge nodes to accommodate higher throughput requirements.

Best used when the number of Edge nodes cannot be increased due to licensing or hardware constraints.

(D - Horizontal Scaling by Adding More NSX Edge Nodes)

Horizontal scaling involves adding more Edge nodes to the cluster instead of upgrading existing ones.

This improves resiliency and performance by distributing traffic loads across multiple Edge nodes.

Recommended for large environments requiring distributed stateful services (e.g., large-scale NAT, Load Balancer).

3. Why the Other Options are Incorrect

(A - Vertical Scaling by Adding More Edge Nodes)

This confuses vertical scaling with horizontal scaling. Adding more nodes is horizontal scaling, not vertical.

(C - Horizontal Scaling by Increasing the Size of Edge Nodes)

Increasing node size is a vertical scaling strategy, not horizontal scaling.

4. Design Considerations for NSX Edge Cluster Growth

Ensure BGP/ECMP is properly configured to utilize multiple Edge nodes for load balancing traffic effectively.

Monitor NSX Edge performance (CPU/memory utilization, throughput) to determine whether vertical or horizontal scaling is required.

Leverage NSX Federation for multi-site deployments, allowing Edge clusters across multiple locations to scale independently.

VMware NSX 4.x Reference:

NSX-T Edge Cluster Scaling and Performance Best Practices

NSX-T Multi-Tier Routing and Gateway Scaling Guide

VMware Validated Design (VVD) for Large NSX Deployments


by Marjory at Jan 24, 2026, 10:11 AM

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Madonna
1 day ago
Vertical and horizontal scaling, for sure. And don't forget to factor in redundancy - can't have a single point of failure!
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Fausto
6 days ago
Hmm, I'd say vertical and horizontal scaling are both key. Can't forget about high availability either - don't want those Edge clusters going down!
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Kristin
11 days ago
Vertical scaling is a must, but don't forget about the ability to add more Edge nodes for horizontal scaling. Gotta be ready for that growth!
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Domitila
17 days ago
Definitely need to consider horizontal and vertical scaling for the NSX Edge clusters. Can't have the environment running out of resources.
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Lai
22 days ago
I recall something about load balancing and redundancy being important for growth, but I can't quite remember the specific patterns we discussed.
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Geoffrey
27 days ago
I feel like vertical scaling could also be an option, but I’m not completely confident about how it applies to NSX Edge clusters specifically.
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Jeannetta
2 months ago
I think one of the patterns might be horizontal scaling, where you add more Edge nodes as needed. I saw a similar question on that in our practice exam.
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Cora
2 months ago
I remember studying about scaling NSX Edge clusters, but I'm not entirely sure which growth patterns are most relevant for a rapidly growing environment.
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Merilyn
2 months ago
This question is testing our understanding of NSX Edge cluster design. I'll need to carefully consider the customer's requirements and match them to the appropriate growth patterns.
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Fanny
2 months ago
I've got a good handle on the different growth patterns for NSX Edge clusters. I think I can narrow it down to the two most relevant options for this scenario.
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Tiera
2 months ago
Okay, let's think this through. The key is to identify the two growth patterns that would be most relevant for a rapidly growing environment that expects to add more workloads. I'll need to consider the tradeoffs and capabilities of each pattern.
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Ammie
3 months ago
I'm a bit unsure about the different growth patterns for NSX Edge clusters. I'll need to review that part of the material to make sure I understand the options before answering.
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Bea
3 months ago
This seems like a pretty straightforward question. I'd focus on understanding the different growth patterns for NSX Edge clusters and how they can accommodate the customer's needs.
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