A company runs a microservices application on Amazon ECS with a service that calls an external payment API. The payment API occasionally returns throttling errors (HTTP 429) and transient network errors. The application currently fails when these errors occur. What should a solutions architect recommend to make the application more fault tolerant?

Increase the ECS service desired count to handle the retries.

Implement exponential backoff with jitter and retry idempotent payment requests.

Use an Application Load Balancer in front of the payment API.

Switch the ECS service to use AWS Fargate launch type.

What is the primary purpose of a health check in a self-healing architecture?

To monitor the performance of the application and optimize resource usage

To collect logs for security auditing

To determine whether a component is functioning correctly and trigger automated recovery if it is not

AWSCertified Solutions Architect - Professional

Domain 1Objective 3

Task 1.3: Design Reliable and Resilient Architectures. SAP-C02 Practice Questions (Page 4)

Part of the Content Domain 1: Design Solutions for Organizational Complexity domain, which makes up ~25% of our current practice bank. AWS does not publish an official question count, but from its 180-minute exam (~70–120 total, ~18–30 in this domain), expect 4–6 from this objective — we provide 34 practice questions to prepare you well beyond it. (estimate)

34questions here

7free pages

10concepts

10 Concepts in This Objective

Design for high availability
Design for fault tolerance
Design for disaster recovery
Design for scalability and elasticity
Design for self-healing architectures
Design for data durability and backup
Design for network resilience
Design for application resilience
Design for infrastructure as code resilience
Design for monitoring and observability

Questions 16–20

16foundation · easy
Which AWS service provides a dedicated private connection from an on-premises network to AWS, bypassing the public internet?
Select an answer first
17application · medium
A company runs a microservices application on Amazon ECS with a service that calls an external payment API. The payment API occasionally returns throttling errors (HTTP 429) and transient network errors. The application currently fails when these errors occur. What should a solutions architect recommend to make the application more fault tolerant?
Select an answer first
18foundation · easy
Which tool is an open-source infrastructure as code tool that supports multiple cloud providers, including AWS?
Select an answer first
19foundation · easy
Which AWS service can be used to provide a redundant network path for failover if a Direct Connect connection becomes unavailable?
Select an answer first
20foundation · easy
What is the primary purpose of a health check in a self-healing architecture?
Select an answer first

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Task 1.3: Design Reliable and Resilient Architectures. SAP-C02 Practice Questions (Page 4)

Questions 16–20

Which AWS service provides a dedicated private connection from an on-premises network to AWS, bypassing the public internet?

Which tool is an open-source infrastructure as code tool that supports multiple cloud providers, including AWS?

Which AWS service can be used to provide a redundant network path for failover if a Direct Connect connection becomes unavailable?

What is the primary purpose of a health check in a self-healing architecture?

Keep studying — Content Domain 1: Design Solutions for Organizational Complexity