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AWS Certified Solutions Architect - Associate · AWS
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Multi value routing will offer random distribution of traffic and 4 EC2 instances in different regions will offer HA
To achieve high availability, fault tolerance, and random traffic distribution, the company should use Route 53 multivalue answer routing and launch four EC2 instances across two Availability Zones. A. Failover routing policy: This is for active-passive setups, not for distributing traffic randomly. B. Weighted routing policy: This allows control over traffic distribution proportions but doesn't ensure randomness or health checks. D. Three EC2 instances in unbalanced zones: This setup lacks symmetry, reducing fault tolerance if the AZ with two instances fails.
By combining these two strategies, the company can achieve high availability and fault tolerance: Weighted Routing Policy: This Route 53 policy distributes traffic across multiple endpoints based on weights assigned to each endpoint. By assigning equal weights to all EC2 instances, traffic can be distributed evenly across them. Multiple Availability Zones: Deploying EC2 instances across multiple Availability Zones ensures that the application can continue to function even if one Availability Zone experiences an outage.https://www.examtopics.com/exams/amazon/aws-certified-solutions-architect-associate-saa-c03/view/23/#