A company is considering integrating its on-premises resources with AWS in a hybrid architecture without any security threats posed by the internet. Their goal is to run the customer-facing data collection processes in AWS. They have to transfer a huge volume of data from their on-premises environment to the EC2 instances running in an AWS VPC (with the data being stored in the volumes of the EC2 instances) daily using a high bandwidth connection which may save costs too. How can this be accomplished?

Answer options:

A.Provision a VPN connection between the on-premise data center and the AWS region using the VPN section of a VPC.B.Suggest provisioning a Direct Connect connection between the on-premise data center and the AWS region.
C.Suggest using AWS import/export to transfer the TBs of data while synchronizing the new data as it arrives.
D.Suggest leaving the data required for the application on-premise and use a VPN to query the on-premise database data from EC2 when required.

Answer – B
In this question, the customer wants to transfer a large amount of data to VPC from the on-premises data center. The main architectural considerations are (1) the cost should be low, and (2) the data being transferred is new data every time.
Option A is incorrect. Although setting up a VPN is a cost-effective solution, it may not have sufficient bandwidth for the data being transferred, especially since the data is new every time. Also, the data will be transferred over the internet. So, the new data adds to the unpredictability of the performance that the VPN connection would yield. So, the VPN connection may stay much longer than expected adding to the overall cost.
Option B is CORRECT because (a) since it is a dedicated connection from on-premises data center to AWS, it takes out the unpredictable nature of the internet out of the equation, and (2) due to the high bandwidth availability, Direct Connect would most probably transfer the large amount of data quickly compared to VPN connection. Hence, it may well save the cost for the customer.
Option C is incorrect because AWS Import/Export is not an ideal option since the data being transferred is new every time, since Import/Export is preferred mainly for first-time data migration and using VPN/Direct Connect later on. 
Option D is incorrect because it is the requirement that the data must be transferred to AWS, hence ruling out the option of leaving the data on-premise.
For more information on AWS direct connect, browse to the below URL-
https://aws.amazon.com/directconnect/
Note: While I agree that the Direct Connect is costly, but compared to other options given, it is certainly the most viable. With the dedicated network connectivity and higher bandwidth, the data transfer would get done quicker than the internet. With Direct Connect, the initial setup cost would be more. But in the long run, it would be the most suitable solution even with regards to keeping the cost low.