Amazon ANS-C01 Exam - Topic 1 Question 4 Discussion

Actual exam question for Amazon's ANS-C01 exam

Question #: 4
Topic #: 1

A network engineer needs to set up an Amazon EC2 Auto Scaling group to run a Linux-based network appliance in a highly available architecture. The network engineer is configuring the new launch template for the Auto Scaling group.

In addition to the primary network interface the network appliance requires a second network interface that will be used exclusively by the application to exchange traffic with hosts over the internet. The company has set up a Bring Your Own IP (BYOIP) pool that includes an Elastic IP address that should be used as the public IP address for the second network interface.

How can the network engineer implement the required architecture?

AConfigure the two network interfaces in the launch template. Define the primary network interface to be created in one of the private subnets. For the second network interface, select one of the public subnets. Choose the BYOIP pool ID as the source of public IP addresses.

BConfigure the primary network interface in a private subnet in the launch template. Use the user data option to run a cloud-init script after boot to attach the second network interface from a subnet with auto-assign public IP addressing enabled.

CCreate an AWS Lambda function to run as a lifecycle hook of the Auto Scaling group when an instance is launching. In the Lambda function, assign a network interface to an AWS Global Accelerator endpoint.

DDuring creation of the Auto Scaling group, select subnets for the primary network interface. Use the user data option to run a cloud-init script to allocate a second network interface and to associate an Elastic IP address from the BYOIP pool.

Show Suggested Answer

Suggested Answer: D

During creation of the Auto Scaling group, select subnets for the primary network interface. Use the user data option to run a cloud-init script to allocate a second network interface and to associate an Elastic IP address from the BYOIP pool.

This solution meets all of the requirements stated in the question. The primary network interface can be configured in a private subnet during creation of the Auto Scaling group. The user data option can be used to run a cloud-init script that will allocate a second network interface and associate an Elastic IP address from the BYOIP pool with it.

by Judy at Mar 25, 2023, 04:27 PM

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Sharen

5 months ago

A is definitely the way to go for a clean setup!

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Cassie

5 months ago

Wait, can you really use BYOIP with a cloud-init script? Sounds tricky.

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Arlen

5 months ago

D seems a bit convoluted, not sure why you'd need a script for that.

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Mira

5 months ago

I think B is better for flexibility with the user data script.

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Ailene

5 months ago

Option A sounds solid, using the BYOIP pool is key.

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Maurine

6 months ago

I’m leaning towards option B, but I’m a bit confused about the cloud-init script part. I remember we talked about it in class, but I’m not sure if it’s the right way to attach a second network interface.

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Roselle

6 months ago

I feel like option D could be a good choice since it mentions using user data, but I’m not entirely confident about how to allocate the second network interface correctly.

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Gwenn

6 months ago

I feel like option D could work too, especially since it mentions using user data for the second interface. We practiced something similar, but I can't recall if that’s the best approach for Elastic IPs.

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Josefa

6 months ago

I practiced a similar question where we had to set up multiple interfaces, but I can't recall if using a cloud-init script is the best approach for this scenario.

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Farrah

6 months ago

I think option A sounds familiar because it aligns with the practice questions we did on subnet configurations, but I’m not entirely confident about using the BYOIP pool directly in the launch template.

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Kimbery

6 months ago

I think option A sounds familiar, but I’m a bit confused about how the BYOIP pool works with the public IP assignment.

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Celestina

6 months ago

I remember we discussed the importance of configuring network interfaces in the launch template, but I'm not sure if the second interface should be in a public subnet or if it can be done through user data.

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Glenn

6 months ago

I remember that the launch template needs to specify the network interfaces, but I'm not sure if it should be done directly or through user data.

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Miles

6 months ago

I'm a bit confused by all the financial data in the image. How exactly am I supposed to use that information to determine the strongest motivations for the acquisition? I'll need to make sure I understand how that data relates to the question.

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Gail

6 months ago

I think we might need a voice translation rule to map the E.164 number to the four-digit extensions, but I'm not entirely sure if that's the exact terminology used in the exam.

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Ashlee

6 months ago

The Combine XPO tool sounds interesting, but I'm not sure if it's the right fit for this particular migration. I think I'll focus on the Data Import/Export Framework and the data migration tool as the more likely options.

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Hillary

6 months ago

I think option B could be the best answer since it involves both issuing sales invoices and recording payments. It seems like that would allow for manipulation of financial records.

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