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AWS Certified Solutions Architect - Professional · AWS
Select one answer.
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B .. This solution provides a high level of reliability by using Amazon Aurora MySQL as the database service, which: Is a fully managed relational database service that supports up to 31 synchronous replicas across three Availability Zones (AZs) within a region. Provides automatic failover and redundancy through Multi-AZ deployments. Deploying the application in an Auto Scaling group on Amazon EC2 instances behind an Application Load Balancer provides: Elastic scaling of instances to match changing traffic demands. High availability through load balancing and instance replication across AZs. Storing sessions in an Amazon ElastiCache for Redis replication group adds: Caching capabilities with automatic failover and redundancy, ensuring high availability.
Option B is an obvious answer.
Neptune, MariaDB & Kinesis Firehose out! B is the right answer, very reliable with Aurora