Nutanix NCP-CI-Azure Exam - Topic 4 Question 1 Discussion

Actual exam question for Nutanix's NCP-CI-Azure exam

Question #: 1
Topic #: 4

An administrator has setup a routed external network (No NAT) to use for workload running in NC2 clusters on Azure.

The applications are network intensive, so four gateways VMs have been deployed to meet the high demands. One application server on the NC2 clusters is sending traffic to an outside Azure service.

How many flow gateway VMs will be used to distribute the traffic?

AAll four Flow Gateway instances will be used based on the ECMP default route that points 3 the external subnets in the Nutanix Transit VPC, but only for sending traffic. Return traffic by use one Flow Gateway VM.

Btwo flow gateway instances will be used based on limitations from using MAC addresses to redistribute traffic.

COnly one Flow Gateway instance will be used per source application running on NC2.

DAll four Flow Gateway instances will be used based on the ECMP default route that points to the external subnets in the Nutanix Transit VPC for sending and receiving traffic.

Show Suggested Answer

Suggested Answer: D

Equal-Cost Multi-Path (ECMP) Routing: ECMP allows multiple gateways to be used simultaneously for load balancing traffic across multiple paths. In this scenario, ECMP is configured to point to the external subnets in the Nutanix Transit VPC.

Traffic Distribution: All four Flow Gateway instances will be used to distribute the outgoing traffic from the application server based on the ECMP default route configuration. This ensures efficient load balancing and utilization of all available gateway resources.

Bidirectional Traffic: Both sending and receiving traffic will utilize all four Flow Gateway instances, ensuring high availability and performance for network-intensive applications.

Nutanix NC2 Networking Guide

Azure Networking Documentation on ECMP

by Johnathon at Jan 24, 2025, 02:49 AM

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Makeda

3 months ago

Four gateways for high demand makes sense, but is it really necessary?

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Elenor

3 months ago

Wait, are we sure about the MAC address limitation? That seems off.

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Vanna

3 months ago

Definitely sounds like option D is the way to go!

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Ashton

4 months ago

I disagree, I believe only one will be used per application.

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Jesse

4 months ago

I think all four Flow Gateway instances will be used for sending traffic.

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Viola

4 months ago

I believe all four gateways can be utilized for both sending and receiving traffic based on ECMP, so option D sounds right to me.

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Erick

4 months ago

I feel like two instances might be a limitation due to MAC address issues, but I can't recall the exact details.

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Nohemi

4 months ago

I think I came across a similar question where only one gateway was used for return traffic. Could it be option A or C?

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William

5 months ago

I remember studying about ECMP and how it distributes traffic, but I'm not sure if all four gateways are used for both sending and receiving.

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Lorita

5 months ago

Ah, I see the key detail now - the question says the traffic is only being sent from the application server, not received. That means the return traffic might only use one of the gateway VMs. I'll need to double-check that.

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Eve

5 months ago

This seems straightforward to me. The question states there are four gateway VMs, and the ECMP default route points to the external subnets, so I think the answer is that all four VMs will be used.

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Micaela

5 months ago

I'm a bit confused by the mention of MAC addresses and the limitations that might cause. I'll need to review my knowledge of ECMP and how that interacts with the gateway VMs.

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Marion

5 months ago

Okay, let me think this through step-by-step. The question mentions four gateway VMs, so I'm guessing the answer has something to do with how those VMs are used to distribute the traffic.

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Malissa

5 months ago

Hmm, this looks like a tricky networking question. I'll need to carefully consider the details about the routed external network, the NC2 clusters, and the ECMP default route.

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