Finance needs an email alert when estimated monthly AWS spend exceeds $5,000 before the month ends. Which service should you configure?

• AWS CloudTrail
• AWS Budgets with forecasted cost alert
• Amazon GuardDuty
• AWS Config

A fault-tolerant batch processing fleet can tolerate interruptions and must minimize cost. Which EC2 purchase model is BEST?

• On-Demand only
• Spot Instances with diversification and interruption handling
• Dedicated Hosts for all workers
• Capacity Reservations for 3 years

Application logs in S3 are accessed frequently for 30 days, then rarely for compliance up to 7 years. What is the MOST cost-effective storage strategy?

• S3 Standard for all 7 years
• Lifecycle transition to Glacier Deep Archive after 30 days
• Delete logs after 30 days
• Store logs on EBS io2 volumes

NAT Gateway costs are high because private subnets download large objects from S3 hourly. What should you implement first?

• Add a second NAT Gateway in the same AZ
• VPC gateway endpoint for S3
• AWS Global Accelerator
• Increase NAT instance bandwidth

Steady production EC2 usage across multiple instance families in one Region will continue for 3 years. Which option typically offers flexible discounting?

• On-Demand only
• Compute Savings Plan
• Spot Instances only
• Additional Internet Gateway