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SAA-C03 · Question #35

An ecommerce company runs several internal applications in multiple AWS accounts. The company uses AWS Organizations to manage its AWS accounts. A security appliance in the company's networking…

The correct answer is C. Deploy a Gateway Load Balancer (GWLB) in the networking account to send traffic to the security. TheGateway Load Balancer (GWLB)is specifically designed to route traffic through a security appliance in a hub-and-spoke model, making it the ideal solution for inspecting traffic between multiple AWS accounts. GWLB enables you to simplify, scale, and deploy third-party virtual…

Submitted by yaw92· Mar 4, 2026Design Secure Architectures

Question

An ecommerce company runs several internal applications in multiple AWS accounts. The company uses AWS Organizations to manage its AWS accounts. A security appliance in the company's networking account must inspect interactions between applications across AWS accounts. Which solution will meet these requirements?

Options

  • ADeploy a Network Load Balancer (NLB) in the networking account to send traffic to the security
  • BDeploy an Application Load Balancer (ALB) in the application accounts to send traffic directly to
  • CDeploy a Gateway Load Balancer (GWLB) in the networking account to send traffic to the security
  • DDeploy an interface VPC endpoint in the application accounts to send traffic directly to the

How the community answered

(33 responses)
  • A
    12% (4)
  • B
    3% (1)
  • C
    79% (26)
  • D
    6% (2)

Explanation

TheGateway Load Balancer (GWLB)is specifically designed to route traffic through a security appliance in a hub-and-spoke model, making it the ideal solution for inspecting traffic between multiple AWS accounts. GWLB enables you to simplify, scale, and deploy third-party virtual appliances transparently, and it can work across multiple VPCs or accounts using interface endpoints (Gateway Load Balancer Endpoints). Key AWS features: Traffic Inspection: The GWLB allows the centralized security appliance to inspect traffic between different VPCs, making it suitable for inspecting inter-account interactions. Interface VPC Endpoints: By using interface endpoints in the application accounts, traffic can securely and efficiently be routed to the security appliance in the networking account. AWS Documentation: The use of GWLB aligns with AWS's best practices for centralized network security, simplifying architecture and reducing operational complexity.

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