Oracle Cloud Infrastructure 2019 Developer Associate — Question 3

Your application front end consists of several Oracle Cloud Infrastructure compute instances behind a 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 replaced automatically by the load balancer.
• B. The instance is terminated automatically by the load balancer.
• C. The instance is taken out of the backend set by the load balancer.
• D. The load balancer stops sending traffic to that instance.

Correct answer: C

Explanation

When an instance fails the health checks, the load balancer will take that instance out of the backend set to prevent it from receiving traffic. The other options suggest actions that do not occur; instances are not automatically replaced or terminated by the load balancer, and merely stopping traffic does not remove the instance from the backend set.