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ANS-C01 · Question #65

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…

The correct answer is D. During creation of the Auto Scaling group, select subnets for the primary network interface. Use. 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…

Submitted by tyler.j· Mar 6, 2026Design and Implement Network Architecture

Question

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?

Options

  • AConfigure the two network interfaces in the launch template. Define the primary network interface
  • BConfigure the primary network interface in a private subnet in the launch template. Use the user
  • CCreate an AWS Lambda function to run as a lifecycle hook of the Auto Scaling group when an
  • DDuring creation of the Auto Scaling group, select subnets for the primary network interface. Use

How the community answered

(37 responses)
  • A
    3% (1)
  • B
    8% (3)
  • C
    5% (2)
  • D
    84% (31)

Explanation

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.

Topics

#EC2 Auto Scaling#Launch Templates#Elastic Network Interfaces#BYOIP

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