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Difficulty: EasyAWS Network Services

A company has three separate Amazon VPCs in the same AWS Region and wants to establish direct network connectivity between all of them. To keep the configuration simple and avoid managing multiple individual connections, which AWS networking service should they use as a central routing hub?

  1. A
    VPC Peering
  2. AWS Transit GatewayAnswer
  3. C
    Security Group
  4. D
    Availability Zone

Answer

AWS Transit Gateway is the correct service because it acts as a central hub to connect multiple VPCs and on-premises networks, simplifying routing management compared to point-to-point connections.
AWS Transit Gateway acts as a centralized cloud router that simplifies connectivity by connecting multiple VPCs and on-premises networks in a hub-and-spoke topology. This removes the administrative overhead of managing many individual point-to-point peering connections.

Step-by-Step Solution

1
Analyze the requirement to connect multiple Amazon VPCs using a centralized routing hub rather than individual point-to-point connections.
Identify that connecting multiple VPCs point-to-point requires a complex mesh of VPC peering connections.
VPC peering is only suitable for simple point-to-point connections and becomes difficult to manage at scale.
2
Select the AWS service designed to act as a central cloud router for interconnecting multiple VPCs and on-premises networks.
Determine that AWS Transit Gateway acts as a hub-and-spoke router to simplify multi-VPC connectivity.
AWS Transit Gateway is specifically designed to eliminate the complexity of managing a large number of VPC peering connections.

Key Concept

AWS Transit Gateway simplifies multi-VPC and hybrid network connectivity by acting as a central routing hub.
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Topics

AWS Network Services

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