AWS Certified Solutions Architect – Associate (SAA-C02) — Question 458

A company has primary and secondary data centers that are 500 miles (804.7 km) apart and interconnected with high-speed fiber-optic cable. 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 a connection solution that provides maximum resiliency.
Which solution meets these requirements?

Answer options

• A. Two AWS Direct Connect connections from the primary data center terminating at two Direct Connect locations on two separate devices
• B. A single AWS Direct Connect connection from each of the primary and secondary data centers terminating at one Direct Connect location on the same device
• C. Two AWS Direct Connect connections from each of the primary and secondary data centers terminating at two Direct Connect locations on two separate devices
• D. A single AWS Direct Connect connection from each of the primary and secondary data centers terminating at one Direct Connect location on two separate devices

Correct answer: D

Explanation

Option D is correct because deploying a Direct Connect connection from both the primary and secondary data centers provides geographic and site-level redundancy. Terminating these connections on two separate devices at the AWS Direct Connect location removes any single point of failure at the hardware level. Other options either lack site-level redundancy by using only one data center, or introduce a single point of failure by terminating on a single device.