ANS-C01 Question 369
Select 3You are designing a hybrid architecture where an on-premises data center needs to communicate with resources in a VPC over AWS Direct Connect. The architecture must ensure high availability and failover for critical workloads. Which combination of configurations should you implement to meet these requirements?
- A
Establish multiple Direct Connect connections at separate AWS Direct Connect locations.
- B
Use BGP (Border Gateway Protocol) to configure dynamic routing for the Direct Connect connections.
- C
Enable Multi-AZ deployment for the Direct Connect gateway.
- D
Configure a VPN over the public internet as a backup for Direct Connect.
- E
Use AWS Transit Gateway to establish connectivity between multiple VPCs and the on-premises data center.
Show answer and explanation
Correct answers: A, B, D
Explanation
To achieve high availability and failover for a hybrid architecture using AWS Direct Connect, you must establish redundancy by setting up multiple connections in different locations, configure BGP for dynamic routing and automatic failover, and implement a VPN as a backup to ensure continued connectivity in case of Direct Connect failure. These configurations collectively provide a resilient and highly available networking setup.
- A. Correct.
Establishing multiple Direct Connect connections at separate locations ensures redundancy and high availability in case one connection or location fails.
- B. Correct.
Using BGP allows for dynamic routing and automatic failover between Direct Connect connections, which is essential for maintaining connectivity during a failure.
- C. Incorrect.
Direct Connect gateways themselves are inherently highly available; Multi-AZ deployment of the gateway is not a valid configuration.
- D. Correct.
A VPN serves as a cost-effective and reliable backup for Direct Connect in case of a failure, enhancing the overall availability of the architecture.
- E. Incorrect.
While AWS Transit Gateway helps simplify connectivity for multiple VPCs, it does not directly address high availability or failover for a hybrid architecture involving Direct Connect.