Question 1:

Amazon RDS supports the following databases, EXCEPT:

• [ ] MySQL
• [ ] MariaDB
• [ ] Microsoft SQL Server
• [x] MongoDB ✅

Explanation:

Amazon RDS does not support MongoDB. It supports databases like MySQL, PostgreSQL, MariaDB, Oracle, MS SQL Server, and Amazon Aurora.

Question 2:

You're planning for a new solution that requires a MySQL database that must be available even in case of a disaster in one of the Availability Zones. What should you use?

• [ ] Create Read Replicas
• [ ] Enable Encryption
• [x] Enable Multi-AZ ✅

Explanation:

Multi-AZ helps with disaster recovery for an Availability Zone (AZ) failure. If you need protection across AWS regions, consider backups and cross-region replication.

Question 3:

We have an RDS database that struggles to keep up with demand. Our million users mostly read news, and we don’t post news very often. Which solution is NOT adapted to this problem?

• [ ] An ElastiCache Cluster