Topic 1 Question 683
2 つ選択A company is migrating its multi-tier on-premises application to AWS. The application consists of a single-node MySQL database and a multi-node web tier. The company must minimize changes to the application during the migration. The company wants to improve application resiliency after the migration.
Which combination of steps will meet these requirements?
Migrate the web tier to Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer.
Migrate the database to Amazon EC2 instances in an Auto Scaling group behind a Network Load Balancer.
Migrate the database to an Amazon RDS Multi-AZ deployment.
Migrate the web tier to an AWS Lambda function.
Migrate the database to an Amazon DynamoDB table.
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コメント(4)
- 正解だと思う選択肢: AC
Web Tier Migration (Option A): Migrating the web tier to Amazon EC2 instances in an Auto Scaling group behind an Application Load Balancer (ALB) provides horizontal scalability, automatic scaling, and improved resiliency. Auto Scaling helps in managing and maintaining the desired number of EC2 instances based on demand, and the ALB distributes incoming traffic across multiple instances.
Database Migration to Amazon RDS Multi-AZ (Option C): Migrating the database to Amazon RDS in a Multi-AZ deployment provides high availability and automatic failover. In a Multi-AZ deployment, Amazon RDS maintains a standby replica in a different Availability Zone, and in the event of a failure, it automatically promotes the replica to the primary instance. This enhances the resiliency of the database.
👍 6meenkaza2023/12/29 Also Dynamo DB is noSQL, that can not be an option here
👍 2fea9bdf2023/12/31- 正解だと思う選択肢: AC
A - ALB is ideal for web application B - NLB would work too but ALB is better C - same functionality as on-premises just with 'improved resiliency' D - would require significant "changes to the application" E - would require significant "changes to the application"
👍 2pentium752024/01/03
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