ANS-C01 Question 128
Select 2Your organization needs to establish connectivity between its on-premises data center and AWS Cloud. The primary requirement is low-latency, high-bandwidth connectivity for critical workloads, while also needing a backup connection with automatic failover in case the primary link fails. Which combination of connectivity strategies and AWS services should you use?
- A
Use AWS Direct Connect for primary connectivity and configure a VPN over the internet for backup.
- B
Use AWS Site-to-Site VPN as the primary connection and configure a second VPN as the backup.
- C
Establish two AWS Direct Connect connections at different locations and configure them in a high-availability setup.
- D
Use AWS Direct Connect for both primary and backup connections, but connect them to the same AWS Direct Connect location.
- E
Use AWS Transit Gateway to manage both Direct Connect and VPN connections for seamless failover.
Show answer and explanation
Correct answers: A, E
Explanation
The combination of AWS Direct Connect for primary connectivity and a Site-to-Site VPN for backup provides the best balance of performance, cost, and redundancy. AWS Transit Gateway further simplifies the architecture by managing these connections and enabling automatic failover, ensuring seamless operation in the event of a failure.
- A. Correct.
Correct. AWS Direct Connect provides low-latency, high-bandwidth connectivity for your primary connection, and a Site-to-Site VPN over the internet can serve as a cost-effective backup with automatic failover.
- B. Incorrect.
Incorrect. While Site-to-Site VPN can be used, it is not suitable as the primary connection for high-bandwidth and low-latency requirements.
- C. Incorrect.
Incorrect. While having two Direct Connect connections at different locations provides redundancy, it doesn't address the need for a cost-effective backup in case of a complete Direct Connect outage.
- D. Incorrect.
Incorrect. Using two Direct Connect connections at the same location does not provide location-level redundancy, making it less resilient to failures.
- E. Correct.
Correct. AWS Transit Gateway can manage multiple connections (Direct Connect and VPN) for seamless failover, simplifying routing and ensuring high availability.