QuestionQ80

Network Design

A global company is setting up network connectivity between its primary and secondary data centers and a VPC. A network engineer must maximize the resiliency and fault tolerance of the connections. The network bandwidth must exceed 10 Gbps.

Which solution meets these requirements in the MOST cost-effective way?

  • A Set up a 100 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up a second 100 Gbps connection at the secondary data center that terminates at a second Direct Connect location. Ensure the connections are managed by separate providers.
  • B Set up a 10 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up a second 10 Gbps connection at the secondary data center that terminates at a second Direct Connect location. Ensure the connections are managed by separate providers.
  • C Set up two 10 Gbps connections at the primary data center that terminate at one AWS Direct Connect location. Ensure the connections are managed by separate providers. Set up two 10 Gbps connections at the secondary data center that terminate at a second Direct Connect location. Ensure the connections are managed by separate providers.
  • D Set up a 10 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up an AWS Site-to-Site VPN connection at the secondary data center that terminates at a virtual private gateway in the same Region as the company’s VPC.
Explanation

Two 10 Gbps AWS Direct Connect connections at each data center provide more than 10 Gbps of aggregate bandwidth while retaining redundant paths through separate providers. Placing the primary and secondary data centers at different Direct Connect locations provides resilience to device, connectivity, and location failures without the cost of 100 Gbps circuits. AWS defines maximum Direct Connect resiliency as separate connections terminating on separate devices in more than one on-premises and Direct Connect location.

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