A SysOps administrator is deploying a fleet of over 100 Amazon EC2 instances in an Amazon VPC. After the instances are set up and serving clients, a new DNS server needs to be added to the instances for DNS resolution. What is the MOST efficient way to make this change?
A) Update the DHCP options set for the Amazon VPC.
B) Use AWS OpsWorks to update the DNS server configuration for each instance.
C) Use AWS Systems Manager to update the DMS server configuration for each instance.
D) Write a script to update the DNS server configuration for each instance.

Question

Quizplus · Accepted Answer

Updating the DHCP options set for the Amazon VPC is the most efficient way to change the DNS server for all instances in the VPC, as it automatically applies to all instances without needing to manually update each one.

A SysOps Administrator Is Deploying a Fleet of Over 100