A company manages more than 1,000 Amazon EC2 instances running Amazon Linux 2 in multiple VPCs. A SysOps administrator must change the statically configured DNS server IP address on all the EC2 instances. Which solution will require the LEAST amount of effort?
A) Develop an AWS Lambda function to update the corporate DNS IP address on all the EC2 instances.
B) Run a shell script to update the corporate DNS IP address on each EC2 instance.
C) Update the Amazon Machine Images (AMIs) of the EC2 instances to configure the updated corporate DNS IP address.
D) Use the AWS Systems Manager Run Command to update the corporate DNS IP address on all the EC2 instances.

Question

Quizplus · Accepted Answer

AWS Systems Manager Run Command allows you to remotely and efficiently execute commands on multiple EC2 instances, making it the least effort solution for updating DNS settings across many instances.

A Company Manages More Than 1,000 Amazon EC2 Instances Running