A company recently implemented a hybrid solution where a small group of databases were syncing with cloud databases for high availability. However, that small group began showing signs of corruption and database administrators were late to realize that the data could not be cleaned or recovered in processing. After deciding to cut the cloud connection, the database administrator could not recover from a backup because of an error in the recovery process. What can the database administrators learn from this experience so similar cases can be avoided in the future?

a$.$

Perform periodic system backups.

b$.$

Create and test data backup and recovery plans.

c$.$

Educate users about sensitive data.

d$.$

Implement file system security.