Danh sách quiz

Cost Optimization

Pricing models, Reserved Instances, Savings Plans, and cost management.

0/15 đã trả lời
  1. Câu 1. A company runs a production web server that must be available 24/7 for the next 3 years. The workload is steady and predictable. Which EC2 purchasing option provides the GREATEST cost savings?
  2. Câu 2. A company uses a mix of EC2, Fargate, and Lambda across multiple AWS accounts. They want a single commitment-based discount that applies across all compute services. Which pricing model should they choose?
  3. Câu 3. A data analytics team runs large Spark jobs on EMR that can tolerate node failures and restarts. They want to minimize costs while maintaining job completion reliability. Which instance purchasing strategy should they use for the EMR cluster?
  4. Câu 4. A company stores 100 TB of data in S3 Standard. Analysis shows that 80% of the data has not been accessed in the past 60 days, but access patterns are unpredictable. Which S3 feature can automatically optimize storage costs without impacting access availability?
  5. Câu 5. A finance team needs to visualize AWS spending trends over the past 12 months, broken down by service, and forecast costs for the next 3 months. Which tool should they use?
  6. Câu 6. A company suspects that many of their EC2 instances are over-provisioned, wasting money on unused capacity. Which AWS service uses machine learning to analyze utilization and recommend right-sizing?
  7. Câu 7. A company purchased Standard Reserved Instances for m5.xlarge in us-east-1. Their workload has changed, and they now need m5.2xlarge instances in eu-west-1. What options do they have to avoid wasting the existing reservation?
  8. Câu 8. A company's AWS bill shows high data transfer costs. Their architecture has EC2 instances in us-east-1 communicating with an RDS database in us-west-2, and serving content to global users via direct EC2 responses. Which TWO changes would reduce data transfer costs the MOST? (Select the best single answer)
  9. Câu 9. A company commits to $10/hour of compute usage through a Compute Savings Plan. In a given hour, they use $15 worth of compute. How is the billing calculated?
  10. Câu 10. A company wants to receive an email alert when their monthly AWS spending is forecasted to exceed $50,000. Which service should they configure?
  11. Câu 11. A company runs a containerized microservices application on ECS with Fargate. Some services are critical (payment processing) while others are fault-tolerant (report generation). How should they optimize costs using Fargate pricing options?
  12. Câu 12. A company has multiple AWS accounts under an AWS Organization. They want to maximize volume discounts on S3 storage and data transfer across all accounts. Which billing feature enables this?
  13. Câu 13. AWS Compute Optimizer recommends changing an m5.2xlarge instance to an m5.xlarge, projecting 40% cost savings with minimal performance impact. However, the application occasionally spikes to 90% CPU during batch processing. What should the team do before implementing the recommendation?
  14. Câu 14. A company stores application logs in S3 Standard. Logs older than 30 days are rarely accessed, and logs older than 90 days are only needed for compliance and can tolerate retrieval times of up to 12 hours. Which lifecycle policy minimizes storage costs?
  15. Câu 15. A company is deciding between Convertible Reserved Instances and Standard Reserved Instances for a 3-year term. Their application may need to change instance families as new generations are released. Which option provides the flexibility they need?