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Zorluk: OrtaCost-Effective Network Routing and Data Transfer Optimization

A digital publishing platform hosts its content delivery tier in VPC Alpha and its logging and analytics cluster in VPC Beta, both located in the `eu-west-1` Region. Every month, the content delivery tier transfers 75 TB75\text{ TB} of raw log files to the analytics cluster. The instances in both VPCs reside in private subnets. Which TWO configuration steps should a Solutions Architect recommend to achieve the most cost-effective network routing? (Select TWO.)

  1. Establish a VPC peering connection between VPC Alpha and VPC Beta, and update the route tables to route the log transfer traffic through the peering connection.Cevap
  2. Configure the content delivery instances to transfer the log files using the private IP addresses of the analytics instances in VPC Beta.Cevap
  3. C
    Deploy an AWS Transit Gateway in the region, attach both VPCs, and route the log transfer traffic through the Transit Gateway.
  4. D
    Configure a NAT Gateway in VPC Alpha and route the traffic to the public IP addresses of the instances in VPC Beta.
  5. E
    Set up an AWS Site-to-Site VPN connection between the two VPCs using a Virtual Private Gateway in each VPC.

Cevap

Establish a VPC peering connection between VPC Alpha and VPC Beta, update the route tables to route the traffic through the peering connection, and configure the instances to communicate using their private IP addresses.
Establishing a VPC peering connection and using private IP addresses is the most cost-effective architecture. VPC peering has no setup fees, hourly attachment fees, or data processing charges. Using private IP addresses ensures that traffic remains within the AWS private network, avoiding NAT Gateway processing fees (which cost $0.045\$0.045 per GB) and public IP data transfer charges.

Adım Adım Çözüm

1
Analyze the source and destination networks and the volume of data transfer.
The traffic is strictly internal between two VPCs in the same AWS Region (`eu-west-1`), involving a high data volume of 75 TB75\text{ TB} per month.
Understanding the data volume and boundaries helps determine the most cost-effective connection type by eliminating options with high per-GB processing charges.
2
Compare the cost structure of VPC Peering versus Transit Gateway.
VPC Peering has no setup fees, hourly charges, or data processing fees. AWS Transit Gateway charges $0.05\$0.05 per GB, which would cost $3,750\$3,750 per month for 75 TB75\text{ TB} of data.
Selecting VPC Peering over Transit Gateway eliminates the data processing fee for intra-region traffic.
3
Evaluate the IP routing mechanism to avoid internet and NAT Gateway costs.
Routing traffic to public IP addresses requires NAT Gateways (incurring $0.045\$0.045 per GB processing fees) or public IP transfer charges. Using private IP addresses over the VPC peering connection avoids these fees.
Private IP routing ensures the traffic remains completely internal and avoids unnecessary NAT or public data transfer charges.

Anahtar Kavram

VPC Peering provides a cost-effective, high-bandwidth connection between VPCs in the same region without data processing fees, whereas Transit Gateway and NAT Gateways charge per-GB processing fees that escalate costs significantly for large data volumes.
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Cost-Effective Network Routing and Data Transfer Optimization