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

Among the listed choices, the best solution is to place an AWS Lambda function in the same VPC and use it as the EventBridge target. EventBridge natively supports Lambda as a target, and a Lambda function that runs in the VPC can call the private API without exposing that API publicly. The internet-facing ALB and NLB options violate the requirement to avoid public IP exposure. The direct-target option is also not expressed correctly for a plain private API endpoint, because modern direct private API targeting in EventBridge requiresconnections and VPC Lattice resource configurations, not simply naming a private VPC endpoint as a raw target. Therefore, Lambda as the bridge component is the correct answer from the provided choices. (AWS Documentation)

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The correct answers areA, C, and Ebecause the company needs a fully managed solution forSFTP uploads to Amazon S3, followed byautomatic decryptionandmovement of files to another directorywithminimal operational overhead.AWS Transfer Familyis the best fit because it provides a managed SFTP endpoint directly integrated with Amazon S3. Configuring the S3 bucket as the home directory enables customers to upload files without the company needing to manage its own file transfer servers.

The requirement to avoid separate authentication services and minimize operational work is well served by nativeAWS Transfer Family workflows. A workflow can automatically run post-upload steps on files as they arrive. TheDECRYPTaction is specifically designed to decrypt uploaded encrypted files as part of the managed workflow. After decryption, theCOPYaction can place the processed file into the second directory in the same S3 bucket for downstream processing.

Option B is less appropriate because using S3 events and Lambda adds custom orchestration where a native Transfer Family workflow already handles the need more simply. Option D is incorrect because polling with an external script introduces unnecessary infrastructure and operational overhead. Option F is also incorrect because AWS Batch polling and custom decryption logic is far more complex than a managed file-transfer workflow.

AWS best practices favor managed services and native workflow features to reduce custom code and infrastructure management. Therefore, the best solution is to useAWS Transfer Family for SFTP uploads, along withTransfer Family workflow DECRYPTandCOPYactions to automate the full post-upload process.

A highly available relational database with minimal manual intervention is best delivered by Amazon RDS Multi-AZ, which provides managed standby infrastructure and automatic failover. For the container-based application layer, Amazon ECS with the Fargate launch type reduces operational effort because AWS manages the underlying compute capacity for the containers. That combination provides managed availability for both the database and the application tier. Read replicas can help scale reads, but they do not replace Multi-AZ as the primary high-availability pattern for the database. ECS on EC2 is workable, but it requires more instance management than Fargate. This makes A and D the strongest pair for high availability with minimal operational overhead.

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