Answer: Cost allocation tags

## Explanation **Cost allocation tags** are the correct answer because they allow companies to categorize and track AWS resource usage by different business units, departments, or cost centers. ### How Cost Allocation Tags Work: - **Tagging Resources**: You can assign custom tags (key-value pairs) to AWS resources - **Cost Tracking**: AWS Cost and Usage Report (CUR) includes these tags, allowing you to filter and group costs by business unit - **Billing Reports**: AWS Billing and Cost Management can generate reports showing costs by tag ### Why Other Options Are Incorrect: - **Key pairs**: Used for SSH access to EC2 instances, not for cost tracking - **Amazon Inspector**: Security assessment service for finding vulnerabilities, not cost management - **AWS Trusted Advisor**: Provides recommendations for cost optimization, security, and performance, but doesn't track resource usage by business unit ### Benefits of Cost Allocation Tags: - **Cost Accountability**: Identify which teams are responsible for specific costs - **Budget Management**: Set budgets and alerts per business unit - **Chargeback**: Allocate costs to different departments for internal billing - **Resource Optimization**: Identify underutilized resources by business unit

Author: Ritesh Yadav