1) You are tasked with migrating a monolithic application to a microservices architecture on AWS. The application must be scalable, and each service should be independently deployed. Which combination of services would best achieve this?

2) You are building a real-time data analytics platform on AWS. The platform must ingest high-velocity data streams from multiple IoT devices and process it in near real-time. Which combination of services would best fit this use case?

3) You need to deploy an application that requires continuous integration and continuous delivery (CI/CD) pipelines. The solution should automatically build, test, and deploy your code whenever a developer commits changes. Which AWS services would you choose?

4) You are setting up an e-commerce website on AWS. The website needs to support dynamic scaling, and customer data must be stored securely. Which combination of services would meet these requirements?

5) Your team needs to process large datasets for machine learning purposes. The datasets are stored in Amazon S3, and the processing requires significant compute resources. Which service would best help you run the analysis with minimal infrastructure management?

6) You are designing a highly available and fault-tolerant architecture for a critical web application. The application should be distributed across multiple AWS regions and automatically failover in case of a region outage. Which combination of services would best meet this requirement?

7) Your organization is migrating a legacy on-premise data warehouse to AWS. The data warehouse needs to handle petabytes of structured data and run complex queries. Which service is the most appropriate for this migration?

8) You are tasked with creating a disaster recovery plan for a web application hosted in a single AWS region. The application’s RPO (Recovery Point Objective) must be as close to zero as possible, and the RTO (Recovery Time Objective) must be minimal. What is the best solution for this scenario?

9) You need to architect a data lake solution on AWS. The solution must allow various teams to run different types of analytics workloads on the same datasets, including machine learning, SQL queries, and real-time analytics. Which combination of services would you use?

10) Your company is developing a serverless application using AWS Lambda. You need to ensure that the Lambda functions can securely access a MySQL database hosted in Amazon RDS. Which approach would you recommend?

11) Your company needs a solution to manage and analyze large volumes of log data generated by applications hosted on EC2 instances. The solution should allow fast querying and visualization of the log data. Which AWS services would best meet this requirement?

12) You are tasked with building a fault-tolerant and highly available database solution that can handle read-heavy workloads across multiple AWS regions. Which combination of services would be best suited for this project?

13) Your team needs to implement a solution for a machine learning model that requires periodic retraining with fresh data from an S3 bucket. The solution should be automated and serverless. Which combination of services would you use?

14) You are setting up a secure data pipeline that ingests data from on-premises systems and stores it in Amazon S3. The solution should encrypt the data in transit and at rest. Which approach would you take?

15) You need to run a business-critical application with a MySQL database on AWS. The application requires automatic failover and high availability, and the database must be replicated across multiple AZs. Which database service would you choose?

16) You are building a web application that needs to support high traffic during a short sales promotion period. The solution must be cost-effective, automatically scalable, and require minimal maintenance. Which combination of services would you use?

17) You are tasked with migrating an existing on-premises application to AWS. The application runs batch processing jobs every night and relies on a relational database. Which AWS services would provide the most cost-effective and scalable solution?

18) You are designing an application that must store large volumes of video files in Amazon S3 and deliver them to global users with low latency. Which combination of services would you use to meet these requirements?

19) You need to automate the deployment of a three-tier web application that includes a load balancer, application servers, and a database. The solution should also manage the scaling and monitoring of these resources. Which AWS service would best fit this scenario?

20) Your organization needs a data warehousing solution on AWS that can scale with growing data volumes and support complex SQL queries across large datasets. The solution should also integrate with your existing business intelligence tools. Which AWS service would you choose?