Oracle Cloud Infrastructure 2020 Architect Associate — Question 39

Your application front end consists of several Oracle Cloud Infrastructure compute instances behind a public load balancer. You have configured the load balancer to perform health checks on these instances.
What will happen if an instance fails to pass the configured health checks?

Answer options

• A. The instance is terminated automatically by the load balancer.
• B. The load balancer stops sending traffic to that instance.
• C. The instance is replaced automatically by the load balancer.
• D. The instance is taken out of the backend set by the load balancer.

Correct answer: B

Explanation

The correct answer is B because when an instance fails health checks, the load balancer will stop directing traffic to it to ensure reliability. Option A is incorrect as the load balancer does not automatically terminate instances; it only manages traffic distribution. Option C is not accurate because the load balancer does not replace instances, and option D is misleading since the instance remains in the backend set but is simply excluded from traffic routing.