A company stores sensitive training data in Amazon S3 and must ensure SageMaker training jobs are network-isolated from the internet. Which configuration will provide the required network isolation while allowing access to the S3 data?

Running SageMaker training jobs in private subnets ensures they are isolated from the internet. Creating an S3 gateway VPC endpoint allows the private subnets to securely access Amazon S3 without traversing the public internet, fulfilling the requirement for network isolation while providing access to the training data. Incorrect options: A NAT gateway allows instances in private subnets to initiate outbound connections to the internet, which violates the network isolation requirement. Running jobs in public subnets, even with security groups, does not provide the required network isolation from the internet. Encryption alone does not address network isolation. Encrypting traffic and data at rest (SSE-KMS, aws:SecureTransport) are important security measures but do not provide network isolation for SageMaker training jobs from the internet.