*-in-backup-plan vs *-resources-protected-by-backup plan managed config rules

Question

What is the difference between the `*-in-backup-plan` and `*-resources-protected-by-backup-plan` managed config rules
* [rds-in-backup-plan](https://docs.aws.amazon.com/config/latest/developerguide/rds-in-backup-plan.html)
* [rds-resources-protected-by-backup-plan](https://docs.aws.amazon.com/config/latest/developerguide/rds-resources-protected-by-backup-plan.html)

There are variants like this for several resource types.

Answer

Hi, Good question

As per the documentation links provided in the question
*  `rds-in-backup-plan` seems to be for the RDS database, so in other words DB backup
*  `rds-resources-protected-by-backup-plan` is for the instances where the RDS is hosted, so in other words OS backup.

The difference seems to be in the Parameters of `rds-resources-protected-by-backup-plan`
```
Parameters:

resourceTags (Optional)
Type: String
Tags for Amazon RDS instances for the rule to check, in JSON format.

resourceId (Optional)
Type: String
ID of Amazon RDS instance for the rule to check.
```

-in-backup-plan vs -resources-protected-by-backup plan managed config rules

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