Q90 — AWS ANS-C01 Ch.1

Question 90 of 100 | ← Chapter 1

A global company is establishing network connections between the company's primary and secondary data centers and a VPC. A network Engineer needs to maximize resiliency and fault tolerance for the connections. The network bandwidth must be greater than 10 Gbps. Which solution will meet these requirements MOST cost-effectively?

• A. Set up a 100 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up a second 100 Gbps Connection at the secondary data center that terminates at a second Direct Connect location. Ensure the connections are managed by Separate providers.
• B. Set up a 10 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up a second 10 Gbps Connection at the secondary data center that terminates at a second Direct Connect location. Ensure the connections are managed by Separate providers.
• C. Set up two 10 Gbps connections at the primary data center that terminate at one AWS Direct Connect location. Ensure the connections are Managed by separate providers. Set up two 10 Gbps connections at the secondary data center that terminate at a second Direct Connect Location. Ensure the connections are managed by separate providers. ✓
• D. Set up a 10 Gbps connection at the primary data center that terminates at an AWS Direct Connect location. Set up an AWS Site-to-Site VPN Connection at the secondary data center that terminates at a virtual private gateway in the same Region as the company’s VPC.

Correct Answer: C. Set up two 10 Gbps connections at the primary data center that terminate at one AWS Direct Connect location. Ensure the connections are Managed by separate providers. Set up two 10 Gbps connections at the secondary data center that terminate at a second Direct Connect Location. Ensure the connections are managed by separate providers.

Explanation

AWS Direct Connect设计原则强调了冗余连接和带宽聚合的重要性。AWS文档建议通过多个Direct Connect连接和不同供应商提升可用性。选项A和B的单连接无法保证数据中心内部冗余，无法满足故障容错最大化。选项D的VPN带宽不足。选项C在每个数据中心部署两条10Gbps连接，总带宽20Gbps满足需求，独立位置和供应商管理确保冗余，相比选项A的100Gbps成本更低，符合经济高效要求。