AWS Certified CloudOps Engineer - Associate SOA-C03

By Amazon · Question Mode

QuestionQ23

Reliability and Business Continuity

A company operates an internal web application on Amazon EC2 instances behind an Application Load Balancer. The instances run in an Amazon EC2 Auto Scaling group within a single Availability Zone. A CloudOps engineer must make the application highly available.

Which action should the CloudOps engineer take to satisfy this requirement?

Explanation

High availability across an Availability Zone failure requires instances in more than one Availability Zone. An Auto Scaling group spanning multiple Availability Zones can launch replacement instances in an unaffected zone, while the load balancer distributes traffic to healthy targets. Increasing capacity within one Availability Zone does not protect against a zonal outage.

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