ANS-C01 Question 131
Single answerAn organization is running a hybrid cloud architecture with workloads split between their on-premises data center and an Amazon VPC. They want to establish a highly available and scalable connection between the two environments while ensuring minimal latency. Which of the following solutions would best meet these requirements?
- A
Set up a VPN connection between the on-premises data center and the Amazon VPC.
- B
Use AWS Direct Connect with a single connection between the on-premises data center and the Amazon VPC.
- C
Configure AWS Direct Connect with a Direct Connect Gateway and multiple connections using a link aggregation group (LAG).
- D
Deploy a transit gateway with a VPN connection and enable BGP for dynamic routing.
Show answer and explanation
Correct answer: C
Explanation
For highly available and scalable connectivity with low latency between an on-premises data center and an Amazon VPC, AWS Direct Connect is the ideal solution. Using multiple connections with a link aggregation group (LAG) ensures fault tolerance and increased bandwidth, while the Direct Connect Gateway allows for connectivity across multiple VPCs and Regions if needed.
- A. Incorrect.
A VPN connection is cost-effective but relies on the internet, which can introduce higher latency and is not highly available by default.
- B. Incorrect.
Using a single AWS Direct Connect connection improves latency but does not provide high availability. If the single connection fails, there is no redundancy.
- C. Correct.
AWS Direct Connect with a Direct Connect Gateway and multiple connections using a link aggregation group (LAG) provides highly available, scalable, and low-latency connectivity. LAG combines multiple connections into a single logical connection, ensuring fault tolerance and increased throughput.
- D. Incorrect.
A transit gateway with a VPN connection provides dynamic routing, but since it relies on the internet, it cannot guarantee low latency or the same level of availability as Direct Connect.