Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 138 discussion

Migrating to Amazon MQ reduces the overhead on the queue management. C and D are dismissed. Deciding between A and B means deciding to go for an AutoScaling group for EC2 or an RDS for Postgress (both multi- AZ). The RDS option has less operational impact, as provide as a service the tools and software required. Consider for instance, the effort to add an additional node like a read replica, to the DB. https://docs.aws.amazon.com/amazon-mq/latest/developer-guide/active-standby-broker-deployment.html https://aws.amazon.com/rds/postgresql/

To meet the requirements of providing the highest availability with the least operational overhead, the solutions architect should take the following actions: * By migrating the queue to Amazon MQ, the architect can take advantage of the built-in high availability and failover capabilities of the service, which will help ensure that messages are delivered reliably and without interruption. * By creating a Multi-AZ Auto Scaling group for the EC2 instances that host the application, the architect can ensure that the application is highly available and able to handle increased traffic without the need for manual intervention. * By migrating the database to a Multi-AZ deployment of Amazon RDS for PostgreSQL, the architect can take advantage of the built-in high availability and failover capabilities of the service, which will help ensure that the database is always available and able to handle increased traffic. Therefore, the correct answer is Option B.

B is the correct answer

CD, you cannot have EC2 scaling work with RabbitMQ as only once instance can be active A: Is good but B is better B: Correct due to usage of RDS for PG so less overhead

Agree with B

B offers high availability and low operational overheads.

Option B is the best solution to meet the high availability and low overhead requirements: Migrate the queue to redundant Amazon MQ Use Auto Scaling groups across AZs for the application Migrate the database to Multi-AZ RDS PostgreSQL The reasons are: Amazon MQ provides a managed, highly available RabbitMQ cluster Multi-AZ Auto Scaling distributes the application across AZs RDS PostgreSQL is managed, multi-AZ capable database Together this architecture removes single points of failure RDS and MQ reduce operational overhead over self-managed

B least operational overhead (Amazon RDS for PostgreSQL --> hence AD out / C says EC2 so out --> Hence B)

Option B provides the highest availability with the least operational overhead. By migrating the queue to a redundant pair of RabbitMQ instances on Amazon MQ, the messaging system becomes highly available. Creating a Multi-AZ Auto Scaling group for EC2 instances hosting the application ensures that it can automatically scale and maintain availability across multiple Availability Zones. Migrating the database to a Multi-AZ deployment of Amazon RDS for PostgreSQL provides automatic failover and data replication across multiple Availability Zones, enhancing availability and reducing operational overhead. A. Incorrect because it does not address the high availability requirement for the RabbitMQ queue and the PostgreSQL database. C. Incorrect because it does not provide redundancy for the RabbitMQ queue and does not address the high availability requirement for the PostgreSQL database. D. Incorrect because it does not address the high availability requirement for the RabbitMQ queue and does not provide redundancy for the application instances.

B for me.

B is right all explanations below are correct

Option B is right answer

B for me