Resilient Architecture III
Explore techniques for distributing traffic evenly using DNS-based policies, understand EC2 instance termination criteria in multi-AZ Auto Scaling groups, and learn how to implement dynamic, cost-efficient scaling for AWS services like EMR and EKS. This lesson helps you design resilient and scalable AWS architectures that handle variable workloads efficiently.
We'll cover the following...
Question 11
A company has six to eight name servers. It wants all the incoming traffic to be distributed evenly among all the servers so that no server gets overwhelmed by the incoming requests.
As a solutions architect, recommend a solution to be achieved using DNS-based traffic distribution.
A. Configure health checks on each name server to ensure they are operational.
B. Use weighted routing policies in your DNS configuration to evenly distribute traffic.
C. Set up latency-based routing to direct traffic to the closest name server.
D. Manually update DNS records to distribute traffic evenly.
Question 12
An Auto Scaling group spans four Availability Zones (AZs) and has eight running EC2 instances distributed equally across the AZs.
When Auto Scaling needs to ...