What is the MOST cost-effective approach the administrator can take to ensure consistent transfer times from S3 to the data center?
Establish an AWS Direct Connect link to each Region. Create a private virtual interface over each link.
Establish an AWS Direct Connect link to each Region. Create a public virtual interface over each link.
Establish an AWS Direct Connect link to one of the Regions. Create a private virtual interface over that link.
Establish an AWS Direct Connect link to one of the Regions. Create a public virtual interface over that link.
Explanations:
Establishing an AWS Direct Connect link to each Region with a private virtual interface would provide redundancy and low-latency connections but is not cost-effective as it requires multiple links to be maintained, leading to higher costs.
While establishing an AWS Direct Connect link to each Region with a public virtual interface could reduce latency, it is still not cost-effective since it involves multiple links. Public virtual interfaces are primarily used for accessing AWS public services, not for direct connections to a data center.
Establishing an AWS Direct Connect link to one Region with a private virtual interface is the most cost-effective solution. This approach reduces costs by requiring only one link while providing a secure, reliable connection to transfer data from S3 to the data center, ensuring consistent transfer times.
Setting up an AWS Direct Connect link to one Region with a public virtual interface is not the best solution for transferring data securely and reliably to a data center. Public interfaces are designed for accessing AWS services over the internet, which does not guarantee consistent performance and could introduce additional costs.
From my point of view, the answer is:
Establish an AWS Direct Connect link to one of the Regions. Create a private virtual interface over that link.