Task 3.5: Identify Opportunities for Cost Optimizations. SAP-C02 Practice Questions (Page 7)

Questions 31–35

1. 31foundation · easy

   Which AWS Cost Explorer feature allows you to forecast future costs and usage based on historical data?

   • ASavings Plans recommendations
   • BCost and usage forecasts
   • CReserved Instance utilization reports
   • DCost anomaly detection
   Reveal Solution Discussion Select an answer first
2. 32foundation · easy

   Which EC2 purchasing option offers spare compute capacity at a discounted rate, but instances can be interrupted with a two-minute warning when AWS needs the capacity back?

   • ADedicated Hosts
   • BReserved Instances
   • CSpot Instances
   • DOn-Demand Instances
   Reveal Solution Discussion Select an answer first
4. 33application · medium

   A company runs a REST API that processes image uploads. The API is used by a mobile application. Traffic is highly variable: it spikes to thousands of requests per second during product launches but is near zero at other times. The API is stateless and each request takes less than 2 seconds to process. The company wants to minimize compute costs while maintaining the ability to handle sudden spikes. What is the most cost-effective architecture?

   • ARun the API on a fleet of EC2 instances behind an Application Load Balancer, with Auto Scaling configured to add instances during spikes.
   • BUse AWS Fargate to run the API as a container, with a service auto-scaling configuration.
   • CImplement the API using AWS Lambda functions behind Amazon API Gateway.
   • DRun the API on a single large EC2 instance to handle the peak load and avoid the complexity of scaling.
   Reveal Solution Discussion Select an answer first
5. 34application · medium

   A data analytics company runs a fleet of EC2 instances in a private VPC subnet. These instances regularly pull large datasets from an Amazon S3 bucket in the same AWS Region for processing. The company's Cost Explorer shows a significant monthly charge for data transfer. The VPC has no internet gateway, and the instances access S3 through a NAT gateway in a public subnet. What should the company do to reduce the data transfer cost?

   • ACreate an interface VPC endpoint for Amazon S3 and attach it to the private subnet.
   • BCreate a gateway VPC endpoint for Amazon S3 and update the route table for the private subnet to route S3 traffic through the endpoint.
   • CEnable S3 Transfer Acceleration on the bucket and update the application to use the accelerated endpoint.
   • DMove the EC2 instances to a public subnet and assign them public IP addresses so they can access S3 directly.
   Reveal Solution Discussion Select an answer first
6. 35foundation · easy

   Which of the following is generally true about AWS data transfer pricing?

   • AData transfer into AWS is free, but data transfer out of AWS to the internet is charged.
   • BData transfer between Availability Zones is free.
   • CData transfer out of AWS is always free.
   • DData transfer within the same region is always charged.
   Reveal Solution Discussion Select an answer first