Crucial Exams

AWS Certified Solutions Architect Professional SAP-C02 Practice Question

A solutions architect is reviewing the architecture of a critical document processing system for a financial services company. The system uses a fleet of EC2 instances running in an Auto Scaling group across three Availability Zones (AZs) in the us-east-1 region. These instances are in private subnets and are responsible for processing sensitive documents. For outbound internet access to a partner's API, all traffic from these private subnets is routed through a single, large EC2 instance configured as a NAT instance, located in a public subnet in us-east-1a. During a recent operational review, it was noted that there are periods where the processing jobs fail due to an inability to connect to the partner API, even though the EC2 worker instances and the partner's service are reported as healthy. Which component of this architecture represents the most significant single point of failure (SPOF) that needs to be remediated to improve reliability?

  • The Auto Scaling group configuration for the EC2 worker fleet.

  • The use of a single Amazon S3 bucket for document ingestion.

  • The single NAT instance in us-east-1a.

  • The Amazon SQS queue used for decoupling the processing tasks.

AWS Certified Solutions Architect Professional SAP-C02
Continuous Improvement for Existing Solutions
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