Amazon EC2 (Elastic Compute Cloud)

1. What is Amazon EC2, and how does it differ from traditional on-premises servers?

2. What are the different EC2 instance types, and how do you choose the right one?

3. What is an Elastic IP, and when would you use it?

4. What is the difference between an On-Demand Instance, a Reserved Instance, and a Spot Instance?

5. How does AWS Auto Scaling work with EC2 instances?

6. What are security groups in EC2, and how do they differ from network ACLs?

7. What are the different types of EC2 storage options?

8. How can you encrypt data stored in an EBS volume?

9. What is the difference between stopping and terminating an EC2 instance?

10. How can you troubleshoot an EC2 instance that is not accessible via SSH?

Amazon S3 (Simple Storage Service)

1. What is Amazon S3, and what are its key use cases?

2. What is the difference between S3 Standard, S3 Intelligent-Tiering, S3 Glacier, and S3 Deep Archive?

3. What are S3 buckets and objects?

4. How does S3 versioning work?

5. What is an S3 Lifecycle Policy, and how is it used?

6. What is the difference between S3 encryption types: SSE-S3, SSE-KMS, and SSE-C?

7. How does S3 Transfer Acceleration improve performance?

8. What are S3 Access Control Lists (ACLs) and Bucket Policies?

9. How does Cross-Region Replication (CRR) work in S3?

10. How do you configure S3 to serve static websites?

Amazon RDS (Relational Database Service)

1. What is Amazon RDS, and how does it differ from running databases on EC2?

2. What are the different database engines supported by RDS?

3. What is Multi-AZ deployment in RDS, and how does it enhance availability?

4. What are RDS Read Replicas, and how do they help in scaling?

5. How do you automate backups in RDS?

6. How does RDS encryption work, and when should you use it?

7. What is the difference between RDS and Aurora?

8. How can you monitor RDS performance?

9. How does Amazon RDS handle maintenance and software patching?

10. What happens when you delete an RDS instance? Can you recover it?

Amazon Route 53

1. What is Amazon Route 53, and what are its primary functions?

2. How does Route 53 support domain registration?

3. What are the different routing policies available in Route 53?

4. What is the difference between an A record and a CNAME record in Route 53?

5. How does Route 53 handle health checks and DNS failover?

6. What is Route 53 Latency-Based Routing?

7. How can you configure Route 53 for multi-region failover?

8. What is a private hosted zone in Route 53, and when would you use it?

9. How does Route 53 integrate with AWS services like CloudFront and ELB?

10. What is the difference between Route 53 alias records and standard DNS records?