Connect more than ten VPCs and on-premises networks.
Reduce the route-management burden of individual peering connections.
Which service is most appropriate?
Use AWS Transit Gateway as a central hub for VPC, VPN, and Direct Connect attachments.
Detailed explanation
S3 is not a network transit hub.
S3 is not a network transit hub.
Transit Gateway centralizes attachments and route tables for VPCs and hybrid connections.
Transit Gateway centralizes attachments and route tables for VPCs and hybrid connections.
DNS does not forward IP packets.
DNS does not forward IP packets.
Connection and route count grows rapidly and is difficult to operate at scale.
Connection and route count grows rapidly and is difficult to operate at scale.
Check official documentation
Compare the following points with the official documentation.
AWS Transit Gateway attachments and route tablesの公式説明を確認する。
What to confirm
VPCピアリングの個別接続とTransit Gatewayハブを比較できる。
Key points
- Transit Gateway
- Central hub
- Route table
Notes
- Environment: AWS公式SOA-C03試験ガイドとAWS公式ドキュメントの確認
- Confirm current AWS service behavior in the official documentation.
Foundation review
Scale of connectivity
A hub reduces the number of individual peering relationships as the network grows.
Attachment policy
Transit Gateway route tables can separate which attachments exchange traffic.