If Auto Scaling wants to terminate an instance in this Auto Scaling group due to a CloudWatch trigger unre-lated to bid price, what will happen?
Auto Scaling will notify the user for the next action
Auto Scaling will remove the instance from the Auto Scaling Group
Auto Scaling overwrites the instance termination attribute and terminates the instances
The EC2 instance will not be terminated since instance protection from scale-in is enabled.
Explanations:
Auto Scaling does not notify the user about instance termination due to a CloudWatch trigger; instance protection prevents the termination from occurring.
Auto Scaling will not remove the instance if instance protection from scale-in is enabled. The instance will not be terminated in the first place.
Instance protection from scale-in takes precedence, preventing Auto Scaling from terminating the instance, even if it would normally be eligible for termination.
Instance protection from scale-in prevents the termination of the instance by Auto Scaling, even if the termination is triggered by a CloudWatch alarm.
From my point of view, the answer is:
The EC2 instance will not be terminated since instance protection from scale-in is enabled.