Task 3.4: Determine a Strategy to Improve Reliability. SAP-C02 Practice Questions (Page 7)

Questions 31–32

1. 31application · medium

   A company runs a stateful web application on a fleet of EC2 instances in a single Auto Scaling group across two Availability Zones. The application stores session state in a local instance store. During a recent AZ failure, all instances in that AZ terminated, and users were forced to re-authenticate and lost in-progress work. The company wants to improve reliability without redesigning the application. What should a solutions architect do?

   • AEnable detailed monitoring on the Auto Scaling group and create a CloudWatch alarm to trigger a Lambda function that restores sessions.
   • BMove session state to an Amazon ElastiCache for Redis cluster deployed across multiple Availability Zones.
   • CPlace the instances in a placement group and use a larger instance type to reduce the likelihood of simultaneous failures.
   • DIncrease the minimum size of the Auto Scaling group and configure a lifecycle hook to drain connections before instance termination.
   Reveal Solution Discussion Select an answer first
2. 32foundation · easy

   In an active-passive failover design, what is the typical role of the passive component?

   • AIt is used only for backups and not for failover
   • BIt handles read-only traffic while the active handles writes
   • CIt remains idle and only takes over if the active component fails
   • DIt actively serves traffic alongside the active component
   Reveal Solution Discussion Select an answer first