AWS Certified Solutions Architect – Associate (SAA-C03) — Question 80

A solutions architect is designing a new hybrid architecture to extend a company's on-premises infrastructure to AWS. The company requires a highly available connection with consistent low latency to an AWS Region. The company needs to minimize costs and is willing to accept slower traffic if the primary connection fails.
What should the solutions architect do to meet these requirements?

Answer options

• A. Provision an AWS Direct Connect connection to a Region. Provision a VPN connection as a backup if the primary Direct Connect connection fails.
• B. Provision a VPN tunnel connection to a Region for private connectivity. Provision a second VPN tunnel for private connectivity and as a backup if the primary VPN connection fails.
• C. Provision an AWS Direct Connect connection to a Region. Provision a second Direct Connect connection to the same Region as a backup if the primary Direct Connect connection fails.
• D. Provision an AWS Direct Connect connection to a Region. Use the Direct Connect failover attribute from the AWS CLI to automatically create a backup connection if the primary Direct Connect connection fails.

Correct answer: A

Explanation

The correct answer is A because it provides a dedicated, high-performance AWS Direct Connect connection with a VPN as a cost-effective backup, meeting the requirements for availability and latency. Option B, while having redundancy, relies solely on VPN, which may not provide the same level of performance. Option C suggests a second Direct Connect connection, which increases costs without addressing the requirement for a backup solution that accepts slower traffic. Option D misinterprets the use of the Direct Connect failover attribute, which does not create a backup connection automatically.