Which solution meets these requirements?
Configure AWS Direct Connect to connect to the VPC. Configure the VPC route tables to allow and deny traffic between AWS and on premises as required.
Create an IAM policy to allow access to the AWS Management Console only from a defined set of corporate IP addresses. Restrict user access based on job responsibility by using an IAM policy and roles.
Configure AWS Site-to-Site VPN to connect to the VPConfigure route table entries to direct traffic from on premises to the VPConfigure instance security groups and network ACLs to allow only required traffic from on premises.
Configure AWS Transit Gateway to connect to the VPC. Configure route table entries to direct traffic from on premises to the VPC. Configure instance security groups and network ACLs to allow only required traffic from on premises.
Explanations:
While AWS Direct Connect provides a dedicated connection with high bandwidth and low latency between on-premises networks and AWS, it does not inherently provide encryption for traffic. Additional security measures would be required to meet the encryption requirements, such as implementing VPN on top of Direct Connect. Moreover, the route table configurations alone would not prevent unrestricted access without additional security controls.
Creating an IAM policy to restrict access to the AWS Management Console is not sufficient to connect the corporate network to the VPC. This option addresses access control at the user level rather than providing network-level encryption or security controls to prevent unrestricted access between the corporate network and AWS resources.
AWS Site-to-Site VPN establishes a secure, encrypted connection between the corporate network and the VPC at both the network and session layers. It also allows for the configuration of route table entries, security groups, and network ACLs to control traffic and restrict access, thus meeting the requirement for preventing unrestricted access.
AWS Transit Gateway facilitates the connection of multiple VPCs and on-premises networks, but it does not directly provide encryption for traffic between the corporate network and the VPC. While it allows for route table configuration and security controls, the lack of inherent encryption means it does not fully meet the requirement for encrypting all traffic.
As I recall, the answer is:
Configure AWS Site-to-Site VPN to connect to the VPConfigure route table entries to direct traffic from on premises to the VPConfigure instance security groups and network ACLs to allow only required traffic from on premises.