LFCA: Linux Foundation Certified IT AssociateDemo

By Linux Foundation · Question Mode

QuestionQ57

Cloud Computing Fundamentals

An IT associate has a web application running on multiple servers that is configured to scale according to CPU usage. The current configuration has a minimum size of 1 and a maximum size of 5 servers, and is designed to launch and distribute the instances across 3 Availability Zones (AZs). During a period of low utilization, an entire AZ failed, and the application experienced downtime. What can the IT associate do to improve the application's availability?

  • A Increase the minimum to 2
  • B Change to scale based on number of requests
  • C Decrease the AZs to 2
  • D Increase the maximum to 6
Explanation

An Auto Scaling group's minimum capacity prevents scaling policies from reducing desired capacity below that value. Setting the minimum to 2 ensures at least two instances remain running during low utilization, so capacity can be distributed across Availability Zones and a surviving instance can continue serving traffic after a single-AZ failure. AWS documents that Auto Scaling maintains instances across enabled Availability Zones and that its balanced strategy supports Availability Zone redundancy.

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