Q91 — AWS ANS-C01 Ch.1

Question 91 of 100 | ← Chapter 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 con¦guring 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 tra¨c 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?

Correct 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.

Explanation

在设置AmazonEC2AutoScaling组的架构时,选项D是可行的。在创建AutoScaling组时选择主网络接口的子网,并通过用户数据选项运行云初始化脚本,来分配第二个网络接口并关联BYOIP池中的弹性IP地址,这种方式能够满足题目中网络工程师的需求。而选项A中关于网络接口在子网中的配置不太准确;选项B通过用户数据运行云初始化脚本来附加第二个网络接口的方式不够直接;选项C使用AWSLambda函数作为生命周期钩子的方式相对复杂且不是最直接满足需求的方法。因此,答案选D。 查看全部