What should the database specialist do to connect to the new, restored Amazon DocumentDB cluster?

A company’s database specialist disabled TLS on an Amazon DocumentDB cluster to perform benchmarking tests. A few days after this change was implemented, a database specialist trainee accidentally deleted multiple tables. The database specialist restored the database from available snapshots. An hour after restoring the cluster, the database specialist is still unable to connect to the new cluster endpoint.

What should the database specialist do to connect to the new, restored Amazon DocumentDB cluster?
A . Change the restored cluster’s parameter group to the original cluster’s custom parameter group.
B . Change the restored cluster’s parameter group to the Amazon DocumentDB default parameter group.
C . Configure the interface VPC endpoint and associate the new Amazon DocumentDB cluster.
D . Run the syncInstances command in AWS DataSync.

View Answer

Answer: A

Explanation:

You can’t modify the parameter settings of the default parameter groups. You can use a DB parameter group to act as a container for engine configuration values that are applied to one or more DB instances. If you create a DB instance without specifying a DB parameter group, the DB instance uses a default DB parameter group. Each default DB parameter group contains database engine defaults and Amazon RDS system defaults. You can’t modify the parameter settings of a default parameter group. Instead, you create your own parameter group where you choose your own parameter settings. Not all DB engine parameters can be changed in a parameter group that you create.