ExpertHard1 markMultiple Choice
AWS SAP-C02 · Question 01 · Domain 1.1: Network Connectivity
An enterprise has 100 VPCs across 5 AWS Regions. They need to establish a highly available, transitive network architecture connecting all VPCs and three on-premises data centers. Which solution provides the MOST scalable architecture with the lowest operational overhead?
An enterprise has 100 VPCs across 5 AWS Regions. They need to establish a highly available, transitive network architecture connecting all VPCs and three on-premises data centers. Which solution provides the MOST scalable architecture with the lowest operational overhead?
Answer options:
A.
Use VPC Peering between all 100 VPCs and setup VPNs to on-premises.
B.
Deploy AWS Transit Gateways in each region, peer them, and connect on-premises via Direct Connect Gateways.
C.
Deploy a single Transit Gateway in one region and connect all global VPCs to it.
D.
Use AWS VPN CloudHub to connect all VPCs and data centers.
How to approach this question
Identify the requirement for transitive routing at scale across regions.
Full Answer
B.Deploy AWS Transit Gateways in each region, peer them, and connect on-premises via Direct Connect Gateways.✓ Correct
Deploy AWS Transit Gateways in each region, peer them, and connect on-premises via Direct Connect Gateways.
AWS Transit Gateway acts as a regional virtual router. Peering them enables cross-region connectivity.
Common mistakes
Selecting VPC peering, which lacks transitive routing.
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