Which combination of steps should the company take to meet these requirements?
(Choose two.)
Create an Amazon Route 53 failover routing policy.
Create an Amazon Route 53 weighted routing policy.
Create an Amazon Route 53 multivalue answer routing policy.
Launch three EC2 instances: two instances in one Availability Zone and one instance in another Availability Zone.
Launch four EC2 instances: two instances in one Availability Zone and two instances in another Availability Zone.
Explanations:
A failover routing policy is designed for high availability but primarily directs traffic to a primary resource and only to a secondary resource if the primary fails. This does not meet the requirement of distributing traffic randomly among running EC2 instances.
A weighted routing policy allows you to assign weights to different resources, directing traffic according to the weights. While it can help with distribution, it doesn’t ensure random distribution across all instances and can lead to uneven traffic distribution based on assigned weights.
A multivalue answer routing policy returns multiple IP addresses for a domain name, allowing for a random distribution of traffic across all healthy EC2 instances. This aligns with the requirement for traffic to reach all instances randomly.
While launching instances in multiple Availability Zones (AZs) contributes to high availability, this option does not address the requirement for random traffic distribution among instances. It also does not maximize fault tolerance since it has only three instances.
Launching four EC2 instances across two Availability Zones increases availability and fault tolerance. This setup allows for redundancy, and when combined with a multivalue answer routing policy, it enables random traffic distribution among all instances, fulfilling the requireme
I figure that the answer is:
Create an Amazon Route 53 multivalue answer routing policy.