SAP-C02 Question 264
Select 2Your company operates globally, serving customers in multiple continents. To ensure low latency, high availability, and fault tolerance, you need to design an architecture that makes use of AWS's global infrastructure. Which of the following strategies should you use to achieve this? (Choose TWO)
- A
Deploy resources across multiple AWS Regions to serve users closer to their location and ensure regional fault tolerance.
- B
Use AWS Availability Zones to replicate resources within a single Region for high availability.
- C
Leverage AWS Global Accelerator to direct user traffic to the optimal endpoint based on latency and health.
- D
Rely solely on a single AWS Region with multiple Availability Zones to minimize operational complexity.
- E
Use AWS Local Zones to serve users globally with low latency.
Show answer and explanation
Correct answers: A, C
Explanation
To design a global architecture that ensures low latency and fault tolerance, it is critical to leverage AWS Regions for geographic redundancy and AWS Global Accelerator to optimize traffic routing. These components together allow you to serve users worldwide with high performance and availability. While Availability Zones and Local Zones improve availability and reduce latency within specific contexts, they are not sufficient solutions for global architectures.
- A. Correct.
Deploying resources across multiple AWS Regions ensures low latency for users in different parts of the world and provides regional fault tolerance in case of a Region-wide outage. This is a best practice for global, highly available architectures.
- B. Incorrect.
While using Availability Zones within a single Region provides high availability, it does not address the issue of global low latency or regional fault tolerance. This approach is suitable for workloads that only target a single Region.
- C. Correct.
AWS Global Accelerator improves the availability and performance of applications by routing traffic to the optimal endpoint based on latency, health, and routing policies. It is a critical component for global architectures that aim to reduce latency for end-users.
- D. Incorrect.
Relying solely on a single AWS Region with multiple Availability Zones may simplify operations but introduces risks such as Region-wide outages and higher latency for global users.
- E. Incorrect.
AWS Local Zones are designed to provide low latency for specific geographic areas near the Local Zone but are not intended for global low-latency solutions. They are more suited to specific edge use cases.