AWS Certified Database – Specialty – Question164

A database specialist has a fleet of Amazon RDS DB instances that use the default DB parameter group.
The database specialist needs to associate a custom parameter group with some of the DB instances.
After the database specialist makes this change, when will the instances be assigned to this new parameter group?

A. Instantaneously after the change is made to the parameter group
B. In the next scheduled maintenance window of the DB instances
C. After the DB instances are manually rebooted
D. Within 24 hours after the change is made to the parameter group

Correct Answer: C

Explanation:

Explanation:
To apply the latest parameter changes to that DB instance, manually reboot the DB instance.
Reference: https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_Working…