Top AWS Cloud Questions for .NET Developers
Q1. What is Amazon Web Services (AWS)?
Answer
Amazon Web Services (AWS) is a comprehensive cloud computing platform provided by Amazon. It offers a wide range of infrastructure services, such as computing power, storage options, and networking, delivered as a utility: on-demand, available in seconds, with pay-as-you-go pricing.
Q2. What are the core services provided by AWS?
Answer
AWS provides a variety of services, including compute (EC2, Lambda), storage (S3, EBS), databases (RDS, DynamoDB), and networking (VPC, Route 53).
Q3. What is Amazon EC2?
Answer
Amazon Elastic Compute Cloud (EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers.
Q4. What is AWS Lambda?
Answer
AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. You pay only for the compute time you consume.
Q5. What is Amazon S3?
Answer
Amazon Simple Storage Service (S3) is an object storage service that offers industry-leading scalability, data availability, security, and performance.
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Q6. What is Amazon RDS?
Answer
Amazon Relational Database Service (RDS) is a managed service that makes it easy to set up, operate, and scale a relational database in the cloud.
Q7. What is Amazon DynamoDB?
Answer
Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability.
Q8. What is Amazon VPC?
Answer
Amazon Virtual Private Cloud (VPC) lets you provision a logically isolated section of the AWS Cloud where you can launch AWS resources in a virtual network that you define.
Q9. What is Amazon Route 53?
Answer
Amazon Route 53 is a scalable and highly available Domain Name System (DNS) web service.
Q10. What is AWS IAM?
Answer
AWS Identity and Access Management (IAM) is a web service that helps you securely control access to AWS resources.
Q11. What is the difference between IaaS, PaaS, and SaaS in AWS?
Answer
IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet. PaaS (Platform as a Service) provides a platform allowing customers to develop, run, and manage applications. SaaS (Software as a Service) delivers software applications over the internet.
Q12. What is AWS CloudFormation?
Answer
AWS CloudFormation is a service that helps you model and set up your Amazon Web Services resources so that you can spend less time managing those resources and more time focusing on your applications that run in AWS.
Q13. What are CloudFormation templates?
Answer
CloudFormation templates are YAML or JSON-formatted text files that describe your desired AWS infrastructure in detail.
Q14. What is Amazon EKS?
Answer
Amazon Elastic Kubernetes Service (EKS) is a managed service that makes it easy to run Kubernetes on AWS without needing to install, operate, and maintain your own Kubernetes control plane or nodes.
Q15. What is Amazon SQS?
Answer
Amazon Simple Queue Service (SQS) is a fully managed message queuing service that enables you to decouple and scale microservices, distributed systems, and serverless applications.
Q16. What is AWS Step Functions?
Answer
AWS Step Functions is a serverless orchestration service that lets you coordinate multiple AWS services into serverless workflows so you can build and update apps quickly.
Q17. What is Amazon CloudWatch?
Answer
Amazon CloudWatch is a monitoring and observability service for DevOps engineers, developers, site reliability engineers (SREs), and IT managers.
Q18. What is AWS X-Ray?
Answer
AWS X-Ray helps developers analyze and debug distributed applications, such as those built using a microservices architecture.
Q19. What is AWS Key Management Service (KMS)?
Answer
AWS KMS makes it easy for you to create and manage cryptographic keys and control their use across a wide range of AWS services and in your applications.
Q20. What is AWS Global Accelerator?
Answer
AWS Global Accelerator is a networking service that improves the availability and performance of your applications with local or global users.
Q21. What is Amazon CloudFront?
Answer
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency and high transfer speeds.
Q22. What is AWS API Gateway?
Answer
Amazon API Gateway is a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale.
Q23. What is AWS Data Pipeline?
Answer
AWS Data Pipeline is a web service that helps you process and move data between different AWS compute and storage services, as well as on-premises data sources, at specified intervals.
Q24. What is AWS Glue?
Answer
AWS Glue is a fully managed ETL (extract, transform, and load) service that makes it easy to prepare and load data for analytics.
Q25. What is Amazon Redshift?
Answer
Amazon Redshift is a fast, scalable data warehouse that makes it simple and cost-effective to analyze all your data across your data warehouse and data lake.
Q26. What is Amazon SageMaker?
Answer
Amazon SageMaker is a fully managed service that provides every developer and data scientist with the ability to build, train, and deploy machine learning (ML) models quickly.
Q27. What is AWS Rekognition?
Answer
Amazon Rekognition is a service that makes it easy to add image and video analysis to your applications.
Q28. What is AWS Lex?
Answer
Amazon Lex is a service for building conversational interfaces into any application using voice and text.
Q29. What is AWS IoT Core?
Answer
AWS IoT Core is a managed cloud service that lets connected devices easily and securely interact with cloud applications and other devices.
Q30. What is AWS EventBridge?
Answer
Amazon EventBridge is a serverless event bus service that makes it easy to connect applications together using data from your own applications, integrated Software-as-a-Service (SaaS) applications, and AWS services.
Looking for more Microservice resources? Read our Master Microservices: Top 30 Interview Questions and Answers for 2025 to build a strong foundation!
Q31. What is Amazon Kinesis?
Answer
Amazon Kinesis makes it easy to collect, process, and analyze real-time, streaming data so you can get timely insights and react quickly to new information.
Q32. What is AWS Stream Analytics?
Answer
AWS Stream Analytics is a real-time data stream processing service that enables you to analyze and process large streams of data from multiple sources.
Q33. What is Amazon S3 Glacier?
Answer
Amazon S3 Glacier is a secure, durable, and extremely low-cost cloud storage service for data archiving and long-term backup.
Q34. What is AWS Lake Formation?
Answer
AWS Lake Formation is a service that makes it easy to set up a secure data lake in days.
Q35. What is AWS Fargate?
Answer
AWS Fargate is a serverless compute engine for containers that works with both Amazon ECS and EKS.
Q36. What is Amazon ElastiCache?
Answer
Amazon ElastiCache is a fully managed in-memory data store, compatible with Redis or Memcached, optimized for real-time applications with sub-millisecond latency.
Q37. What is AWS Service Catalog?
Answer
AWS Service Catalog allows organizations to create and manage catalogs of IT services that are approved for use on AWS.
Q38. What is AWS Batch?
Answer
AWS Batch enables you to efficiently run hundreds of thousands of batch computing jobs on AWS.
Q39. What is AWS Site-to-Site VPN?
Answer
AWS Site-to-Site VPN creates a secure connection between your on-premises network or branch office and the AWS global network.
Q40. What is AWS Backup?
Answer
AWS Backup is a fully managed backup service that makes it easy to centralize and automate the backup of data across AWS services in the cloud and on premises.
Q41. What is AWS Shield?
Answer
AWS Shield is a managed Distributed Denial of Service (DDoS) protection service that safeguards applications running on AWS.
Q42. What is AWS WAF?
Answer
AWS WAF is a web application firewall that helps protect your web applications or APIs against common web exploits and bots that may affect availability, compromise security, or consume excessive resources.
Q43. What is AWS Organizations?
Answer
AWS Organizations helps you centrally manage and govern your environment as you grow and scale your AWS resources.
Q44. What is AWS Config?
Answer
AWS Config is a service that enables you to assess, audit, and evaluate the configurations of your AWS resources.
Q45. What is AWS Trusted Advisor?
Answer
AWS Trusted Advisor is an online resource that helps you reduce cost, increase performance, and improve security by optimizing your AWS environment.
Q46. What is AWS Cost Explorer?
Answer
AWS Cost Explorer is a tool that enables you to visualize, understand, and manage your AWS costs and usage over time.
Q47. What is AWS Migration Hub?
Answer
AWS Migration Hub provides a single location to track the progress of application migrations across multiple AWS and partner solutions.
Q48. What is AWS Outposts?
Answer
AWS Outposts is a family of fully managed solutions delivering AWS infrastructure and services to virtually any on-premises or edge location for a truly consistent hybrid experience.
Q49. What is AWS Snowball?
Answer
AWS Snowball is a petabyte-scale data transport solution that uses secure appliances to transfer large amounts of data into and out of the AWS cloud.
Q50. What is AWS Ground Station?
Answer
AWS Ground Station is a fully managed service that lets you control satellite communications, process data, and scale your satellite operations quickly, easily, and cost-effectively without having to build or manage your own ground station infrastructure.
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