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Zorluk: OrtaOptimizing Network Performance and Latency

A global logistics company hosts its central inventory tracking platform in the us-west-2 Region. The application layer runs on Amazon EC2 instances in private subnets across two Availability Zones. Outbound tracking updates are sent to third-party shipping partners over the internet via a single NAT Gateway located in one Availability Zone. Additionally, users located in Europe and South America experience high latency when accessing the platform's web interface, which is behind an Application Load Balancer (ALB).

The company requires a solution that minimizes network latency for global clients without deploying the application layer in multiple AWS Regions. The solution must also eliminate single points of failure for outbound traffic and minimize cross-Availability Zone data transfer costs.

Which combination of architectural changes should the Solutions Architect implement? (Select TWO.)

  1. Create an AWS Global Accelerator accelerator and associate it with the Application Load Balancer to route global client traffic over the AWS edge network.Cevap
  2. Deploy a NAT Gateway in each Availability Zone where the EC2 instances are running, and update the private subnet route tables to direct outbound traffic to the NAT Gateway in the same zone.Cevap
  3. C
    Request AWS Support to pre-warm the Application Load Balancer to handle the fluctuating traffic spikes from global users and reduce initial connection latency.
  4. D
    Create a Route 53 Private Hosted Zone with the public domain names of the shipping partners to resolve their IP addresses locally within the VPC.
  5. E
    Configure a single AWS Transit Gateway to route outbound traffic transitively through a dedicated transit VPC in a different AWS Region to centralize egress paths.

Cevap

Deploying AWS Global Accelerator associated with the Application Load Balancer, and deploying a NAT Gateway in each Availability Zone where the EC2 instances are running with updated local route tables.
The correct solution involves deploying AWS Global Accelerator and deploying a NAT Gateway in each Availability Zone. AWS Global Accelerator routes traffic from clients in Europe and South America over the AWS global network to the Application Load Balancer in the us-west-2 Region, reducing latency and packet loss. Deploying a NAT Gateway in each Availability Zone and updating the route tables ensures that outbound traffic to the shipping partners does not cross Availability Zones, eliminating cross-AZ data transfer costs and removing the single NAT Gateway as a single point of failure.

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1
Address the inbound latency for global users by routing their traffic over the AWS global network.
By provisioning an AWS Global Accelerator and pointing it to the Application Load Balancer, client requests from Europe and South America are onboarded at the nearest AWS edge location and routed over the high-performance AWS global network instead of the public internet.
This minimizes network latency and packet loss without the administrative overhead of deploying and managing the application layer in multiple AWS Regions.
2
Address outbound connection resiliency and eliminate single points of failure for outbound traffic.
Deploying a NAT Gateway in each Availability Zone ensures that if one zone experiences an outage, the other zone's outbound traffic remains unaffected.
This configuration provides high availability for internet-bound connections to the third-party shipping partners.
3
Optimize internal routing to minimize cross-Availability Zone data transfer costs.
By updating the route tables of the private subnets to send 0.0.0.0/0 traffic to the NAT Gateway in the same Availability Zone, outbound traffic is kept local to the AZ.
This avoids cross-AZ data transfer fees and reduces internal network latency.

Anahtar Kavram

Optimizing geographic inbound network performance using AWS Global Accelerator and improving outbound connectivity resiliency and cost-efficiency using multi-AZ NAT Gateways.
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Optimizing Network Performance and Latency