Top 35 AWS Interview Questions | AWS interview Questions And Answers 2026 | Simplilearn

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In this video, we’ll walk you through 35 of the most important AWS interview questions and answers that every aspiring cloud professional should know. Whether you’re preparing for roles like AWS Developer, Cloud Engineer, or Solutions Architect, this video covers it all . Each question is explained in a clear, beginner-friendly way with examples, helping you understand not just the “what,” but also the “why.” By the end, you’ll have a complete understanding of key AWS concepts, real-world use cases, and the confidence to ace your next cloud interview. Perfect for both freshers and experienced professionals looking to strengthen their AWS knowledge and interview skills.

00:00:06 – Introduction
00:02:59 – What is Cloud Computing?
00:03:41 – What is the problem with the Traditional IT approach compared to using the Cloud?
00:04:51 – How many types of deployment models exist in the cloud?
00:05:46 – What are the five characteristics of Cloud Computing?
00:07:00 – What are the main types of Cloud Computing?
00:08:15 – What is Amazon EC2, and what are its main uses?
00:08:54 – What is Amazon S3, and why is it important?
00:09:58 – What is IAM, and why is it important?
00:10:32 – What is Amazon RDS and how does it differ from traditional databases?
00:12:10 – What is Amazon VPC , why it is used?
00:12:43 – What is serverless architecture in AWS?
00:13:46 – What is Amazon CloudWatch and what are its components?
00:15:25 – What is AWS Lambda and how does it enable serverless computing
00:16:47 – What is ELastic Load Balancing in AWS?
00:18:02 – How do you use AWS CodePipeline to automate a CI/CD Pipeline for a multi-tier application?
00:19:34 – What are the key factors that should be considered in designing a deployment solution on AWS to effectively provision,configure, deploy, scale and monitor applications?
00:20:57 – What is Infrastructure as a Code?
00:21:43 – What are the some strategies for blue/green deployments on AWS?
00:22:16 – What is AWS CloudFormation and how does it facilitate DevOps practices?
00:23:10 – What is the role of AWS Solution Architect?
00:23:41 – What are the strategies to create a highly available and fault tolerant AWS architecture for critical web applications?
00:24:52 – Describe how would you use AWS services to implement a microservices architecture
00:27:07 – What is the relationship between AWS Glue and AWS Lake Formation?
00:28:00 – How do you optimize AWS costs for a high-traffic web application?
00:29:10 – What are the key pillars of AWS Well-architected Framework?
00:30:40 – Describe the difference between Amazon Redshift ,RDS and S3 and when should one be used?
00:31:50 – Describe a scenario where would use Amazon Kinesis over AWS Lambda for data processing.What are the key considerations?
00:33:34 – What are the key differences between batch and real time data processing?
00:35:36 – How do you handle schema-on-read vs schema-on-write in AWS data lakes?
00:36:27 – How would you set up a data lake on AWS and what services would you use?
00:37:42 – Application Migration
00:38:33 – Disaster Recovery
00:39:40 – Real-time data analytics
00:40:11 – DDos attacks protection

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AWS Masters Program course is for individuals seeking an overall understanding of Amazon Web Services Cloud, independent of specific technical roles. To build AWS Cloud knowledge, you will learn about AWS Cloud concepts, services, security, architecture and support. This course also helps prepare for the AWS Certified Cloud Practitioner exam.providers: Microsoft Azure, AWS, and GCP.

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– Storage and databases
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– Front and Edge locations
– Networking concepts
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