A workload has unpredictable traffic with long periods of no activity. Which architectural approach is most cost-effective?

Use a large EC2 instance to handle peak load

Run a fleet of EC2 instances that are always on

Use a serverless architecture with AWS Lambda

Use a dedicated host for the workload

A company is deciding between using AWS Lambda (serverless) and running a container on Amazon ECS for a small, intermittent workload. What is a cost advantage of using Lambda?

Lambda provides a fixed monthly cost regardless of usage

Lambda is always cheaper than ECS

Lambda only charges for the compute time and requests actually used

A company has a global user base and runs its application in the us-east-1 Region. The application serves static content (images, videos) and dynamic API responses. The company wants to reduce data transfer costs and improve latency for users worldwide. What should the company do?

Use AWS Global Accelerator to route all traffic to us-east-1.

Use S3 Transfer Acceleration to speed up uploads to the S3 bucket.

Use Amazon CloudFront to cache static content at edge locations and keep the dynamic API in us-east-1.

Deploy the application in multiple AWS Regions and use Route 53 latency-based routing.

When optimizing costs, why is it important to consider security requirements?

Security requirements only affect the choice of instance types

Security requirements are irrelevant to cost optimization

Security requirements can increase costs, and ignoring them can lead to expensive breaches

Security requirements always reduce costs

A company runs a web server on an EC2 instance that is consistently using only 10% of its CPU and 20% of its memory. The instance type is m5.2xlarge. The company wants to reduce costs without impacting performance. What should the company do?

Move the workload to a burstable instance type, such as t3.medium.

Change the instance type to a smaller size, such as m5.large, and monitor performance.

Keep the current instance type but purchase a Reserved Instance to get a discount.

Add more memory to the instance by changing to an r5.2xlarge.

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Domain 2Objective 6

Task 2.6: Determine a Cost Optimization Strategy to Meet Solution Goals and Objectives SAP-C02 Practice Questions (Page 6)

Part of the Content Domain 2: Design for New Solutions domain, which makes up ~31% of our current practice bank. AWS does not publish an official question count, but from its 180-minute exam (~70–120 total, ~22–37 in this domain), expect 4–6 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

11concepts

11 Concepts in This Objective

Cost optimization strategy definition
Cost modeling and estimation
Cost-benefit analysis
Right-sizing resources
Using pricing models
Storage cost optimization
Data transfer cost optimization
Managed services cost trade-offs
Serverless and event-driven cost benefits
Cost monitoring and governance
Trade-offs between cost and other objectives

Questions 26–30

26foundation · easy
A workload has unpredictable traffic with long periods of no activity. Which architectural approach is most cost-effective?
Select an answer first
27foundation · easy
A company is deciding between using AWS Lambda (serverless) and running a container on Amazon ECS for a small, intermittent workload. What is a cost advantage of using Lambda?
Select an answer first
28expert · hard
A company has a global user base and runs its application in the us-east-1 Region. The application serves static content (images, videos) and dynamic API responses. The company wants to reduce data transfer costs and improve latency for users worldwide. What should the company do?
Select an answer first
29foundation · easy
When optimizing costs, why is it important to consider security requirements?
Select an answer first
30application · medium
A company runs a web server on an EC2 instance that is consistently using only 10% of its CPU and 20% of its memory. The instance type is m5.2xlarge. The company wants to reduce costs without impacting performance. What should the company do?
Select an answer first

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