1) You are tasked with setting up a secure VPC for a new application. The application needs to access resources in other AWS accounts and on-premises environments, while ensuring secure connectivity and controlled traffic flows. Which solution would you implement?

2) You are managing a fleet of EC2 instances running a critical application. You want to reduce costs by using Spot Instances but still ensure high availability. Which strategy would you implement?

3) Your company wants to implement a secure and automated data backup solution that regularly copies data from an on-premises SQL database to an Amazon S3 bucket. The data should be encrypted during transfer and stored with encryption at rest. Which AWS services and features would best meet this requirement?

4) Your team is deploying a global web application that must serve users with low latency across multiple continents. You need to ensure that all static and dynamic content is delivered efficiently, and the application can automatically route users to the nearest region. What combination of AWS services should you use?

5) You are tasked with building a serverless application that processes uploaded images from an S3 bucket. The application needs to perform real-time image analysis and store metadata in a NoSQL database. Which AWS services should you use to implement this solution?

6) You are responsible for migrating a data warehouse from an on-premises environment to AWS. The data warehouse contains large amounts of structured and unstructured data, and you need to ensure that queries are optimized for performance. Which AWS service would you use?

7) Your organization has a critical application hosted on EC2 instances, and you need to implement a disaster recovery plan that ensures the application can failover to another region with minimal downtime. Which AWS services would you use to achieve this?

8) You are tasked with creating a data lake that will store raw data from multiple sources in Amazon S3. The data must be analyzed and transformed for different teams, each using different AWS analytics services. Which combination of services would best fit this requirement?

9) Your application needs to handle millions of requests per second and store session data for users. The session data must be highly available and replicated across multiple Availability Zones. Which AWS service would best meet this requirement?

10) You are tasked with building an IoT data pipeline that ingests sensor data from thousands of devices, processes the data in real time, and stores the results in a data warehouse for analysis. Which AWS services would you use?

11) Your company wants to implement an automated solution that monitors AWS resources for compliance violations and security vulnerabilities. The solution must also trigger remediation actions when an issue is detected. Which AWS services would you use?

12) You are building a machine learning application that requires a large amount of unstructured data to be processed and trained. The solution should allow for distributed training and model inference. Which combination of AWS services would you choose?

13) You need to implement a scalable solution for streaming data from a social media platform into AWS, process the data in real-time, and store it in Amazon S3 for further analysis. Which combination of services would best meet this requirement?

14) Your organization is running an e-commerce website on AWS and wants to ensure that the application can scale automatically to handle spikes in traffic during sales events. Which services would you recommend to ensure both scalability and high availability?

15) You are building a distributed web application that must store user data in multiple regions for low-latency access. The data must be synchronized across regions in near real-time, and the solution should be highly available and fault-tolerant. Which AWS service would you choose?

16) You are building a data analytics pipeline where large datasets need to be processed in parallel and results stored in Amazon S3. The solution should be cost-effective, and able to handle unpredictable workloads that vary significantly in volume. Which AWS services would you use?

17) You are tasked with designing a microservices architecture where different services need to communicate with each other asynchronously. The solution should be fault-tolerant and capable of retrying messages if a service is temporarily unavailable. Which combination of services should you use?

18) Your company needs to ensure that sensitive data stored in Amazon S3 is only accessible to users from specific IP addresses. You also need to implement encryption at rest and enforce compliance policies automatically. What combination of services would you use to secure the data?

19) You are migrating a legacy monolithic application to AWS. The application needs to be broken down into microservices and should support continuous integration and deployment (CI/CD). Which AWS services would you use to achieve this migration?

20) Your organization is building a real-time analytics platform to process large streams of data from multiple IoT devices. The data should be processed, transformed, and stored for historical analysis. Which combination of AWS services would best meet this requirement?