ANS-C01 Question 154
Single answerYou are designing a hybrid cloud architecture that spans multiple AWS Regions and your on-premises data center. To ensure efficient communication between services in the hybrid network, you decide to implement an overlay network. Which AWS service or feature is most suitable for creating and managing this type of overlay network?
- A
AWS Transit Gateway
- B
AWS Cloud WAN
- C
AWS PrivateLink
- D
Amazon VPC Lattice
Show answer and explanation
Correct answer: B
Explanation
Overlay networks are logical networks built on top of existing physical networks to facilitate communication between resources. AWS Cloud WAN is the most suitable service for this use case because it is designed to create and manage global networks that span multiple AWS Regions and on-premises environments. It simplifies hybrid network management and ensures efficient communication across the overlay network.
- A. Incorrect.
AWS Transit Gateway simplifies network management by acting as a hub for VPCs and on-premises networks, but it does not inherently create an overlay network that spans multiple Regions or manage global connectivity.
- B. Correct.
AWS Cloud WAN is specifically designed to build, manage, and monitor global networks, effectively creating an overlay network across AWS Regions and on-premises environments.
- C. Incorrect.
AWS PrivateLink is used for private connectivity to services within AWS without exposing them to the public internet, but it is not designed for creating an overlay network.
- D. Incorrect.
Amazon VPC Lattice provides service-to-service connectivity within VPCs but does not support the creation of an overlay network across multiple AWS Regions or on-premises environments.