AWS Certified Advanced Networking Specialty Practice Exam

How can on-premises applications access Amazon S3 storage efficiently?

1. Set up a VPN connection to S3

2. Establish an AWS Direct Connect public Virtual Interface (VIF)

3. Use AWS Storage Gateway for seamless integration

4. Transfer data via AWS Snowball service

The correct answer is: Establish an AWS Direct Connect public Virtual Interface (VIF)

Establishing an AWS Direct Connect public Virtual Interface (VIF) is a highly efficient method for on-premises applications to access Amazon S3 storage. This is because AWS Direct Connect provides a dedicated network connection from an on-premises environment directly to AWS, which leads to lower latency and more stable network performance compared to typical internet connections. By using a public VIF, organizations can connect their local infrastructure to public AWS services, such as S3, without needing to go through the public internet. This approach not only enhances bandwidth options but also enhances security and reliability, as traffic can traverse a dedicated and private link that avoids the common pitfalls of internet traffic, such as latency spikes and throttling. This option is particularly effective for large data transfers or applications that require consistent performance, making it essential for enterprises that rely on quick and efficient access to their cloud storage solutions. While other options may provide access or transfer capabilities, they do not match the efficiency and stability that AWS Direct Connect offers for accessing S3 directly.