You are managing a legacy application Inside VPC with hard coded IP addresses in its configuration. Which two mechanisms will allow the application to failover to new instances without the need for reconfiguration? (Choose two.)
A) Create an ELB to reroute traffic to a failover instance
B) Create a secondary ENI that can be moved to a failover instance
C) Use Route53 health checks to fail traffic over to a failover instance
D) Assign a secondary private IP address to the primary ENIO that can be moved to a failover instance

Question

Quizplus · Accepted Answer

Using a secondary ENI or assigning a secondary private IP address allows you to move the network interface or IP to a new instance, enabling failover without changing the application's hard-coded IP configuration.

You Are Managing a Legacy Application Inside VPC with Hard