Topic 1 Question 247

AWS Certified Solutions Architect - Professional

Topic 1 Question 247
A large company runs workloads in VPCs that are deployed across hundreds of AWS accounts. Each VPC consists of public subnets and private subnets that span across multiple Availability Zones. NAT gateways are deployed in the public subnets and allow outbound connectivity to the internet from the private subnets.

A solutions architect is working on a hub-and-spoke design. All private subnets in the spoke VPCs must route traffic to the internet through an egress VPC. The solutions architect already has deployed a NAT gateway in an egress VPC in a central AWS account.

Which set of additional steps should the solutions architect take to meet these requirements?
- Create peering connections between the egress VPC and the spoke VPCs. Configure the required routing to allow access to the internet.
- Create a transit gateway, and share it with the existing AWS accounts. Attach existing VPCs to the transit gateway. Configure the required routing to allow access to the internet.
- Create a transit gateway in every account. Attach the NAT gateway to the transit gateways. Configure the required routing to allow access to the internet.
- Create an AWS PrivateLink connection between the egress VPC and the spoke VPCs. Configure the required routing to allow access to the internet.
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- 正解だと思う選択肢: B
  hundreds of VPCs-> TGW then we only have B and C C: create TGW in each account, wrong
  
  👍 3
  Christina6662023/07/05
- 正解だと思う選択肢: B
  Option B suggests creating a transit gateway, which acts as a hub for connectivity between multiple VPCs and on-premises networks. By sharing the transit gateway with the existing AWS accounts, the solutions architect can attach the VPCs, including the spoke VPCs, to the transit gateway. The required routing can then be configured to direct traffic from the spoke VPCs to the transit gateway, which will route it to the egress VPC with the NAT gateway. This allows for centralized routing and connectivity to the internet for the spoke VPCs.
  
  👍 2
  Alabi2023/06/23
- 正解だと思う選択肢: B
  B - Hub and spoke is based on transit GW
  
  👍 2
  SmileyCloud2023/06/26
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