Home › AWS Solutions Architect Professional › cloudcomputing › sapcomplexity › An enterprise architect must connect 50 VPCs acr…
An enterprise architect must connect 50 VPCs across 5 AWS regions plus an on-prem datacenter. Which AWS service centralises this hub-and-spoke network topology while minimising peer-mesh complexity?
AAWS Transit Gateway (with inter-region peering)
BHardcoding routes in every VPC's route table
CPairwise VPC Peering between all 50 VPCs
DNAT Gateway only
Answer & Solution
Correct answer: A. AWS Transit Gateway (with inter-region peering)
Transit Gateway is the hub-and-spoke connector for many VPCs + on-prem; inter-region peering scales it globally. Pairwise peering scales O(n²); manual routes are unmaintainable; NAT is for egress only.
Related questions
An architect must give a third-party identity provider (e.g. Okta, Azure AD) federated accWhich AWS rightsizing visibility tool analyses Amazon EC2 + EBS + Lambda + Auto Scaling grAn enterprise wants to enforce 'no resources in eu-central-1' and 'no IAM users with adminAn architect needs centralised security findings (GuardDuty + Inspector + IAM Access AnalyWhich AWS purchasing option offers the deepest discount for steady-state compute usage witAn enterprise on SAP-C02 RTO/RPO design must recover a critical workload within 4 hours anWhich AWS service provides hybrid DNS by forwarding DNS queries between an on-prem resolveWhich AWS service lets one account share specific resources (e.g. Transit Gateway, subnets