SAP-C02 Question 452
Select 4You are designing a highly available and cost-effective architecture for a real-time financial trading platform that has unpredictable load patterns. The platform must maintain low latency and high throughput, especially during peak trading hours. Which combination of solutions would best address these requirements?
- A
Use Auto Scaling groups with a target tracking scaling policy based on average CPU utilization.
- B
Deploy EC2 instances in a cluster placement group.
- C
Use Spot Instances for all EC2 instances to reduce costs.
- D
Implement an Application Load Balancer (ALB) to distribute traffic across EC2 instances.
- E
Leverage Amazon EC2 Instance Fleets to diversify across On-Demand, Spot, and Reserved Instances.
Show answer and explanation
Correct answers: A, B, D, E
Explanation
To design a high-performing architecture for a financial trading platform, you need solutions that prioritize low latency, high throughput, and availability while managing costs. Auto Scaling ensures the platform can handle unpredictable workloads. A cluster placement group enhances communication latency and throughput between nodes. An ALB distributes traffic evenly across the instances, improving scalability and fault tolerance. Additionally, EC2 Instance Fleets enable cost optimization by using a mix of instance types while ensuring availability. Spot Instances alone are not reliable for such a critical application due to the risk of termination.
- A. Correct.
Correct: Auto Scaling groups with target tracking policies ensure that the system automatically adjusts to maintain performance during unpredictable load patterns.
- B. Correct.
Correct: Cluster placement groups allow for low-latency and high-throughput communication between EC2 instances, which is crucial for a financial trading platform.
- C. Incorrect.
Incorrect: While Spot Instances reduce costs, they can be terminated by AWS with little notice, making them unsuitable for critical, low-latency applications like financial trading.
- D. Correct.
Correct: An Application Load Balancer distributes traffic effectively across multiple EC2 instances, ensuring scalability and high availability.
- E. Correct.
Correct: EC2 Instance Fleets allow diversification across On-Demand, Spot, and Reserved Instances, balancing cost optimization with availability.