AWS Certified Database – Specialty — Question 38

After restoring an Amazon RDS snapshot from 3 days ago, a company's Development team cannot connect to the restored RDS DB instance. What is the likely cause of this problem?

Answer options

• A. The restored DB instance does not have Enhanced Monitoring enabled
• B. The production DB instance is using a custom parameter group
• C. The restored DB instance is using the default security group
• D. The production DB instance is using a custom option group

Correct answer: C

Explanation

The most probable cause for the connection issue is that the restored DB instance is linked to the default security group, which may not allow the necessary inbound connections. In contrast, the other options regarding Enhanced Monitoring, custom parameter groups, and custom option groups do not directly affect connectivity to the database instance.