A company has primary and secondary data centers 500 miles (804.7 km) apart, interconnected by high-speed fiber. The company needs a highly available and secure network connection between its data centers and a VPC on AWS for a mission-critical workload. A solutions architect must choose the option that provides maximum resiliency. Which solution meets these requirements?
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Correct answer: Two AWS Direct Connect connections from each of the primary and secondary data centers terminating at two Direct Connect locations on two separate devices.
Why this is the answer
The correct option provides maximum resiliency by establishing multiple, redundant connections from both data centers to AWS. Two Direct Connect connections from each data center ensure that a failure in one connection path or device does not disrupt connectivity. Terminating these connections at two separate Direct Connect locations further enhances resilience by protecting against an outage at a single location. Using two separate devices at each location adds another layer of redundancy. The other options offer less redundancy. A single Direct Connect from each data center to one location on the same device creates single points of failure. Two connections from only the primary data center still leaves the secondary data center vulnerable. A single connection from each data center to one location on two separate devices is better but still has a single point of failure at the Direct Connect location.
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