> For the complete documentation index, see [llms.txt](https://awsinpractice.itassist.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://awsinpractice.itassist.com/study-group/aws-certified-solutions-architect-associate/domain-4/task-statement-4.3-design-cost-optimized-database-solutions/hands-on-labs-and-final-challenge.md).

# Hands-on Labs & Final Challenge

#### **Scenario:**

SecureCart’s database team must **implement a cost-optimized AWS database solution** balancing **scalability, performance, and cost efficiency**.

#### **Final Study Group Challenges:**

✅ **Scenario 1:** Select the Most Cost-Effective AWS Database Service for a Given Workload\
✅ **Scenario 2:** Optimize Database Scaling Using Read Replicas & Auto Scaling\
✅ **Scenario 3:** Implement Caching Using ElastiCache & DynamoDB DAX\
✅ **Scenario 4:** Optimize Database Backup & Retention Policies Using AWS Backup\
✅ **Scenario 5:** Migrate an On-Prem Database to AWS Using AWS DMS

🔹 **Outcome:** Learners **demonstrate AWS best practices for cost-optimized database architectures**.

***

### **📚 Recommended Study Resources**

✅ **AWS Well-Architected Framework – Cost Optimization Pillar**\
✅ **AWS Database Optimization Best Practices**\
✅ **AWS Cost Explorer & AWS Budgets for Database Cost Management**\
✅ **Amazon ElastiCache & DynamoDB DAX for Query Performance Improvement**\
✅ **AWS DMS & SCT for Cost-Efficient Database Migrations**