Amazon Web Services SAA-C03 Exam With Confidence Using Practice Dumps

Amazon Athena enables serverless SQL queries directly on S3 objects, eliminating the need to download or preprocess data. EMR adds operational overhead, and API Gateway/ElastiCache are not data lake query engines.

The correct answer isDbecause the company needsNFS supportfor its on-premises environment and wants to back up files intoAmazon S3in themost cost-effectiveway.AWS Storage Gateway File Gatewayis the AWS service designed to present a file interface usingNFS(and SMB) while storing the files as objects in Amazon S3. This allows the company to keep using NFS-based workflows without redesigning the backup process.

The company also wants toarchive the backup files after 5 daysand is willing to waita few daysto retrieve archived data for disaster recovery. That retrieval tolerance aligns well withAmazon S3 Glacier Deep Archive, which is the lowest-cost S3 archival storage class for long-term retention when fast retrieval is not required. By applying anS3 Lifecycle ruleto transition files to Glacier Deep Archive after 5 days, the company can minimize storage cost while still retaining the backups durably in S3.

Option A is incorrect becauseS3 Standard-IAis cheaper than Standard for infrequent access, but it is not archival storage and is more expensive than Glacier Deep Archive for long-term backup retention. Option B is incorrect becauseVolume Gatewayprovides block storage interfaces, not NFS file access. Option C is incorrect becauseTape Gatewayis intended for virtual tape backup workflows, not direct NFS file storage access.

AWS best practices recommendFile Gatewaywhen on-premises applications need file-based access to Amazon S3, andS3 Glacier Deep Archivewhen the lowest-cost archival tier is acceptable. Therefore,File Gateway with a lifecycle transition to S3 Glacier Deep Archiveis the best solution.

The application requires independent scaling, ordered asynchronous processing, and relational data storage. Option A provides a microservices-oriented, decoupled architecture using managed services.

Amazon ECS with AWS Fargate enables containerized workloads without server management and allows each component to scale independently. Amazon RDS supports relational data storage for user profiles and content. Amazon SQS ensures reliable, ordered message processing and decouples long-running background tasks, allowing services to evolve independently.

Option B uses SNS, which does not guarantee message ordering. Option C uses DynamoDB, which does not meet the relational data requirement. Option D offers less granular scaling and higher coupling.

Therefore, A best meets scalability, resilience, and modularity requirements.